HVAC Sensors for Duct, Pipe & Outdoor Air
Datasheet-verified ABB Cylon field sensors for duct, immersion, pipe and outdoor measurement - supplied by Australia's only authorised ABB Cylon distributor. Every HVAC sensor on this page reports temperature, relative humidity (RH), CO2, PM2.5 or differential pressure straight into your BACnet (Building Automation and Control network) plant via native 0-10 V, 4-20 mA or RS485 Modbus.
[ View HVAC Sensor Specs ] [ Request Trade Pricing ]
Banner alt text: HVAC Sensors — Qantec Automation Australia
SECTION 3 — CATEGORY INTRO BLOCK
Qantec Automation is the Australian authorised distributor for ABB Cylon building controls [Link this to Building Automation Main Category Page], holding local stock of the full HVAC sensor range across duct, immersion, pipe-contact and outdoor formats. This HVAC sensor category covers temperature, humidity, CO2, PM2.5 and air-pressure differential measurement across air handling units (AHUs), chilled and heating water lines, plant rooms and outside-air intakes. Stocked, configured and supported from Australia, with trade pricing and engineering backup for systems integrators specifying against NABERS (National Australian Built Environment Rating System) and NCC (National Construction Code) project requirements.
SECTION 4 — SENSOR LINES IN THIS CATEGORY
Products render directly as WooCommerce tiles - grouped by measurement type for fast filtering.
SECTION 5 — FEATURED PRODUCTS
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000019"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Model | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000001A"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Measurement | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000001B"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Output | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000001C"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Buy |
|---|---|---|---|
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000001D"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-DTH-3V100 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000001E"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct humidity sensor + temp | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000001F"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">0-10 V | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000020"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">[ View specs ] |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000021"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-DCO2-0M0 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000022"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct CO2 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000023"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">RS485 Modbus | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000024"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">[ View specs ] |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000025"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-AP-A50 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000026"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct air pressure differential | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000027"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">4-20 mA | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000028"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">[ View specs ] |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000029"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">AGS54 (1S9SW100) | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000002A"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Outdoor temperature | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000002B"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Passive RTD | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000002C"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">[ View specs ] |
SECTION 6 — CTA BAR
Need Duct & Outdoor Sensors Verified Against Your Points List?
Send us your AHU schedule and BMS points list - we'll match the right HVAC sensor output (0-10 V, 4-20 mA or Modbus) to your controller inputs and confirm local stock. Trade-registered integrators receive project pricing on full-rack quantities.
SECTION 7 — DETAILED HVAC SENSOR REFERENCE
On this page: Range overview · Temperature sensors · CO2, PM2.5 & pressure · Outdoor probes · Australian compliance · Why Qantec · FAQs
HVAC Sensor Range for Australian BMS Projects
An HVAC sensor is the field-level transducer that converts a physical air or water property - temperature, humidity, CO2, particulate or pressure - into a signal the field controller can read and act on. The ABB Cylon CLS series outputs natively over 0-10 V, 4-20 mA or RS485 Modbus, with every duct, outdoor and pressure variant rated to IP65 for plant-room and intake environments. That output flexibility is what lets one HVAC sensor family serve both legacy analogue panels and modern Master-Slave/Token-Passing (MS/TP) networks without a separate interface.
Each HVAC sensor feeds the loops handled by your BACnet field controllers [Link this to BACnet Controllers Sub-Category Page] and the points expanded by I/O expansion modules [Link this to I/O Expansion Modules Sub-Category Page]. For wall- and ceiling-level room measurement rather than duct measurement, see room and wall-mounted smart sensors [Link this to Smart Room Sensors & Controls Sub-Category Page].
Temperature Sensor for HVAC Duct & Pipe Lines
A temperature sensor for HVAC plant measures air or water temperature at a specific point - in a duct, an immersion pocket, or clamped to a pipe surface - and presents it as a resistance or transmitted signal. Whether the HVAC sensor is active or passive governs cabling: a two-wire RTD (resistance temperature detector) carries lead-resistance error of roughly 0.1 degC per 10 m on 1.25 mm2 cable, so long home runs favour an active 4-20 mA HVAC temperature sensor over a raw passive element. Pair it with an HVAC humidity sensor where RH control is required.
Duct Temperature & Humidity: CLS-DTH-3V100 Series
The CLS-DTH-3V100 / -3A100 / -3V200 / -3A200 are active duct mounted temperature and humidity sensors built on a PT1000 temperature element with a 35-186 mm insertion probe, rated IP65. The 3V suffix gives a 0-10 V output and 3A gives 4-20 mA; the 100 accuracy class is verified at +/-3% RH, with the 200 class as the enhanced-accuracy option. As a combined duct temperature and humidity sensor, each HVAC sensor halves your AHU penetrations versus separate probes. This duct humidity sensor reads supply or return air directly, and as an HVAC humidity sensor it feeds zone RH back to the controller for economiser and reheat logic.
Duct sensor mounting sequence:
Passive Duct Temperature Sensor: CLS-DT-22 Range
The CLS-DT-11 / -12 / -13 / -21 / -22 / -23 are passive duct temperature sensor elements for controllers that prefer a raw resistance input. The verified reference HVAC sensor, CLS-DT-22, uses an NTC10K-II element on a 125 mm probe, rated IP65. Element type and probe length vary across the six order codes, so confirm the resistance curve of the duct temperature sensor against the specific code at quotation. When you specify a temperature sensor for HVAC duct duty, match that element to your controller library to avoid a fixed measurement offset.
Immersion & Pipe-Contact Probes: AKF & VFG54
For water-side measurement, the range carries three passive insertion probes - the 135 mm AKF1013507 (1S9SW102), 192 mm AKF1019207 (1S9SW104) and 62 mm AKF106207 (1S9SW108) - all IP65 RTD elements for chilled and heating water lines via a thermowell, so the HVAC sensor withdraws without draining the system. This makes the AKF a practical temperature sensor for water tank, buffer-vessel and flow/return duty. The VFG54 (1S9SW138) is a spring-loaded brass contact unit - a water pipe temperature sensor that clamps to the pipe surface for fast response where an immersion pocket isn't available.
Duct CO2, PM2.5 & Pressure HVAC Sensor Lines
Indoor air quality and airflow on an AHU are governed by three measurands beyond temperature: CO2 for demand-controlled ventilation (DCV), particulate for filtration control, and differential pressure for fan and filter status. Each ABB Cylon variant below is IP65 and selectable between analogue and RS485 Modbus so it drops onto either a hardwired input or a Modbus trunk.
Duct CO2 Sensor Models: CLS-DCO2-0M0 & 0VA0
The CLS-DCO2-0M0 is a duct CO2 sensor with an RS485 Modbus output, a verified 400-2000 ppm span and +/-50 ppm accuracy, rated IP65. The CLS-DCO2-0VA0 is the same duct CO2 sensor with simultaneous 0-10 V and 4-20 mA analogue outputs for controllers without a Modbus port. Each HVAC sensor monitors CO2 in the return airstream to drive outside-air dampers under a DCV strategy.
Duct PM2.5 Transmitters: CLS-DPM-VAM0
The CLS-DPM-VA0 and CLS-DPM-VAM0 are duct PM2.5 particulate transmitters reading 0-500 ug/m3, rated IP65 - not pressure devices. The VA0 carries 0-10 V plus 4-20 mA outputs; the CLS-DPM-VAM0 adds RS485 Modbus for direct logging into the building management software [Link this to BMS Software & Licences Sub-Category Page].
Air Pressure Differential: CLS-AP-A50
The CLS-AP-A50 and CLS-AP-V50 are the range's HVAC pressure transmitter for duct and filter differential measurement, with field-selectable spans of 0-2500 / 5000 / 10000 Pa, rated IP65. The CLS-AP-A50 outputs 4-20 mA and the CLS-AP-V50 outputs 0-10 V. Specify this HVAC sensor for fan-status proving, filter-blockage alarms and room-pressurisation control.
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000004D"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Series | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000004E"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Measurand | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000004F"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Output | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000050"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Verified range / accuracy | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="d5e8f0" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000051"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="1"/><w:bCs w:val="1"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">IP |
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| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000052"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-DTH-3V100 / -3A100 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000053"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct temp + RH | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000054"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">0-10 V / 4-20 mA | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000055"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">PT1000; +/-3% RH; 35-186 mm probe | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000056"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">IP65 |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000057"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-DCO2-0M0 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000058"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct CO2 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000059"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">RS485 Modbus | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000005A"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">400-2000 ppm; +/-50 ppm | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000005B"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">IP65 |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000005C"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-DCO2-0VA0 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000005D"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct CO2 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000005E"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">0-10 V & 4-20 mA | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000005F"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">400-2000 ppm | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000060"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">IP65 |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000061"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-DPM-VAM0 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000062"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct PM2.5 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000063"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">0-10 V, 4-20 mA + RS485 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000064"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">0-500 ug/m3 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000065"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">IP65 |
| <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000066"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CLS-AP-A50 / -V50 | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000067"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Duct air dP | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000068"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">4-20 mA / 0-10 V | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="00000069"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">0-2500 / 5000 / 10000 Pa selectable | <w:tcBorders><w:top w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:left w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:bottom w:color="cccccc" w:space="0" w:sz="4" w:val="single"/><w:right w:color="cccccc" w:space="0" w:sz="4" w:val="single"/></w:tcBorders><w:shd w:fill="ffffff" w:val="clear"/><w:tcMar><w:top w:w="70.0" w:type="dxa"/><w:left w:w="110.0" w:type="dxa"/><w:bottom w:w="70.0" w:type="dxa"/><w:right w:w="110.0" w:type="dxa"/></w:tcMar></w:tcPr><w:p w:rsidR="00000000" w:rsidDel="00000000" w:rsidP="00000000" w:rsidRDefault="00000000" w:rsidRPr="00000000" w14:paraId="0000006A"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:b w:val="0"/><w:bCs w:val="0"/><w:sz w:val="20"/><w:szCs w:val="20"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">IP65 |
Outdoor HVAC Sensor Probes: CLS-OTH & AGS54
Outside-air conditions drive economiser logic and enthalpy changeover, so every plant needs a reference HVAC sensor reading ambient temperature and humidity. Each CLS-OTH HVAC sensor (CLS-OTH-3V100 / -3A100 / -3V200 / -3A200) shares the duct CLS-DTH platform - PT1000 element, 0-10 V or 4-20 mA output, IP65 - in a weather-rated housing, and its outdoor HVAC humidity sensor stage tracks ambient RH for changeover. The passive AGS54 (1S9SW100) is a verified PT1000 outdoor temperature probe rated IP65, with spring-loaded quick connectors for fast field termination.
HVAC Sensor Compliance for Australian Buildings
Specifying an HVAC sensor in Australia is constrained by measurement obligations, not just hardware fit. A duct CO2 sensor in the return air maps directly to AS 1668.2 mechanical ventilation rates, while a duct temperature sensor on supply air, a duct humidity sensor on return air and outside-air reference points underpin the metered energy data NABERS Energy and Indoor Environment ratings depend on. An HVAC humidity sensor logging RH, plus PM2.5 and CO2 trends, supports Green Star Buildings v1.1 indoor-environment-quality credits, and accurate plant-room and energy and sub-metering monitoring [Link this to Power & Energy Sub-Category Page] inputs feed the energy provisions of NCC Section J. The CLS range's native Modbus and analogue outputs let integrators surface every one of these compliance points without protocol converters.
Outbound references: ABB Cylon sensor portfolio · NABERS rating framework.
Why Specify Qantec for HVAC Sensor Supply
For zone-level control hardware that pairs with these sensors, see FCU thermostats and zone controllers [Link this to Smart Thermostats & FCU Controllers Sub-Category Page]; for wireless field measurement, see wireless LoRaWAN environmental sensors [Link this to Environmental Sensors Sub-Category Page].
HVAC Sensor Cybersecurity & Network Layers
Field sensors are an attack surface the moment they share a network with supervisory hardware. A Modbus-output HVAC sensor such as the CLS-DCO2-0M0 should sit on a dedicated field-bus VLAN, logically separated from the corporate network and reachable only through the BMS supervisor. Where remote engineering access is required, terminate it over a VPN tunnel rather than exposing the controller to the open internet, and enforce role-based access controls on the supervisor so sensor recalibration and override are restricted to commissioning staff. Maintain firmware integrity on the parent field controllers - the sensors themselves are transducers, but the controllers reading them must run signed, current firmware to prevent point-spoofing or replay on the bus.
HVAC Sensor FAQs for BMS Engineers
Should a duct temperature and humidity sensor read supply air or return air?
Mount the duct humidity sensor and its temperature stage in the return airstream when you need a representative zone average, and in the supply duct when you're proving coil performance or off-coil condition. Position it downstream of the fan in a mixed, straight run, with the probe tip in the airflow. A duct humidity sensor reading a wall-hugging stream over-reads, so keep it clear of the opposite duct wall.
When do I choose 4-20 mA over 0-10 V on an HVAC sensor?
Choose 4-20 mA for a temperature sensor for HVAC on long cable runs and electrically noisy plant rooms - current loops reject the voltage drop and interference that degrade a 0-10 V signal. Use 0-10 V for short runs into a co-located controller. The CLS-DTH and CLS-AP ranges offer both as separate order codes.
How many Modbus HVAC sensors can share one RS485 trunk?
The RS485 standard addresses up to 255 devices, but the practical limit per trunk is around 30 to keep commissioning, polling cycles and cable maintenance manageable. Beyond that, split the load across additional trunks or controller ports rather than overloading a single segment.
Why use an immersion temperature sensor for water tank duty instead of a pipe-contact probe?
An immersion probe like the AKF1013507 sits inside a thermowell directly in the fluid, giving faster, more accurate readings and surviving full system pressure, while the well lets you withdraw the probe without draining. A VFG54 pipe-contact sensor is the retrofit option where you can't break into the line.
SECTION 8 — FOOTER CTA
Specify Your HVAC Sensor Schedule with Qantec
Send your AHU schedule, points list and output requirements - our engineers confirm the right HVAC sensor - duct, immersion or outdoor - against ABB Cylon datasheets and local stock. Trade-registered integrators receive project pricing and lead-time confirmation the same business day.
[ Request Trade Pricing ] [ Talk to an Engineer ] [ Download ABB Cylon Datasheets ]
SECTION 9 — EXTENDED HVAC SENSOR FAQ
Can a duct-mounted CLS-DCO2 sensor stay calibrated if it never sees fresh outside air?
Not reliably - automatic baseline calibration (ABC) assumes the sensor periodically reads about 400 ppm of fresh air, and a duct carrying continuously occupied air may never hit that baseline, so the reading slowly drifts low. For 24/7 plant or tight return-air paths, schedule a periodic purge cycle, trigger a manual fresh-air recalibration on the CLS-DCO2-0M0 over Modbus, or specify a longer ABC window. Demand-controlled ventilation only needs the inside-to-outside difference, so a reference outdoor CO2 reading also keeps the strategy honest.
How do I match a CLS-DT element to my BMS controller's sensor library?
Pick the order code whose resistance element matches the curve your controller library already lists - the verified CLS-DT-22 uses an NTC10K-II element, and a PT1000 element behaves differently, so the wrong choice reads a real temperature offset, not a wiring fault. Confirm whether your field controller expects NTC10K, NTC20K or PT1000 before ordering, because the six CLS-DT codes differ by element and probe length. The active CLS-DTH transmitters sidestep this by outputting a scaled 0-10 V or 4-20 mA signal independent of the controller's resistance table.
Do wide ducts need an averaging HVAC sensor instead of a single probe?
Yes - air stratifies across large cross-sections and after coils, so a single-point probe in a wide duct can misread the true average by several degrees or percent RH. Mount the sensor in a well-mixed straight run downstream of the fan, and on very wide ducts use multiple probes or an averaging element so the controller acts on a representative value. A duct temperature and humidity sensor placed in dead air or against the wall will swing your control loop unnecessarily.
Where should an outdoor temperature and humidity transmitter be mounted in Australia?
Mount it on a shaded southern-aspect wall or under a radiation shield, away from direct sun, exhaust louvres and reflected heat, so it reads true ambient rather than solar-loaded air. In the southern hemisphere the southern face receives the least direct sun, which is why CLS-OTH and AGS54 outdoor probes belong there rather than on a sun-baked northern wall. Keep the unit clear of AHU relief air and condenser discharge that would bias the economiser reference.
Which CLS-AP pressure span do I select for filter and room-pressure duty?
Choose the lowest span that comfortably covers your expected differential - the CLS-AP-A50 offers 0-2500, 0-5000 and 0-10000 Pa selectable, and a tighter span gives finer resolution for filter-blockage and fan-proving alarms. Filter differential and room pressurisation typically sit in the low hundreds of pascals, so the 0-2500 Pa setting resolves them best; reserve the wider spans for high-static AHU sections. As an HVAC pressure transmitter it reads gauge or differential pressure, not flow, so pair it with a pitot or averaging array if you need velocity.
Why must each active duct transmitter have its own isolated 24 V AC supply?
Sharing one 24 V AC transformer across multiple active transmitters lets their common wiring form a loop that can damage the sensors and corrupt readings. Power each duct temperature and humidity sensor or CO2 transmitter from a dedicated isolated 24 V AC source, and do not let that transformer feed other field devices. This is the single most common cause of premature duct-sensor failure on multi-point AHUs.
Does an IP65 rating protect a duct humidity sensor from internal condensation?
No - IP65 rates the enclosure against external dust and water ingress, not condensation forming inside a probe sitting in saturated return air. In high-humidity ducts, orient the probe so moisture drains away from the sensing element and avoid mounting it where carry-over droplets strike it directly. A duct humidity sensor reading a persistent 100% RH is often wetted-element carry-over, not genuine saturation.
What RS485 settings does a Modbus duct sensor need at commissioning?
Set a unique slave address, a matching baud rate and parity, and terminate both ends of the trunk before the CLS-DCO2-0M0 or CLS-DPM-VAM0 will poll cleanly. Keep every device on the segment at the same baud and parity, give each a distinct address, and fit 120 ohm termination at the physical ends of the daisy chain. Star-wiring and mismatched parity are the usual reasons a Modbus duct sensor drops off the bus.
How long does the optical cell in a duct PM2.5 transmitter last in dirty return air?
Optical particulate cells gradually foul in dusty return-air streams, so a duct PM2.5 transmitter like the CLS-DPM-VAM0 needs periodic inspection and eventual cell replacement rather than lifetime fit-and-forget. Schedule cleaning in line with your filter-change interval, since the same loading that blocks filters coats the sensor optics. Logging the PM2.5 trend makes fouling visible as a slow baseline rise.
SECTION 10 — SCHEMA IMPLEMENTATION NOTES
Inject the @graph below as a single application/ld+json block in the page <head>. It carries BreadcrumbList, CollectionPage, ItemList, FAQPage, Organization (publisher, with ABN 52 623 495 901) and the Person reviewer node for EE-A-T. Two hard rules: (1) the FAQPage mainEntity must be generated from the same data array that renders the visible Section 7 and Section 9 FAQ so the text is byte-identical on-page versus schema; (2) the visible reviewer byline must match the Person name exactly.
VideoObject - OMITTED (verified): a live YouTube/Vimeo search returned no official, model-specific manufacturer video for the CLS duct/outdoor range (CLS-DTH / DCO2 / DPM / AP / OTH / AKF / VFG54 / AGS54). The only official ABB videos cover the FusionAir room sensor, a different product. Per standard, no VideoObject schema and no video embed are added to this page.
[REVISION APPLIED - density retuned, reviewer swapped to Stephen Ford, internal links consolidated. Packaged below as a styled .docx for Sufyan.]
