Temperature Sensors, Humidity & CO2 for BMS

Wall-mounted and bus-connected room sensors from ABB Cylon and Optergy: the temperature sensor, humidity and CO2 sensor hardware that feeds live space data to your Building Management System (BMS) over the Building Automation and Control network (BACnet) and Modbus. Australian stock, backed by local engineering support.

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SECTION 3 — CATEGORY INTRO BLOCK

Qantec Automation is the authorised Australian distributor for ABB Cylon and Optergy building controls, stocking the full room sensor range for BMS engineers, systems integrators, and facility managers nationwide. Every wired room temperature sensor, humidity sensor, and CO2 sensor ships with a 0–10 V, 4–20 mA, Modbus RTU or BACnet MS/TP output to match your controller. All lines are held in Australian stock with current firmware, datasheet support, and trade pricing for authorised contractors.

SECTION 4 — SENSOR FAMILIES (WOOCOMMERCE TILES)

SECTION 5 — FEATURED PRODUCTS

Showing 12 of 13 Products

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CLS-RCO2

AUD $308.00 – AUD $347.60 inc. GST

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CLS-RPM

AUD $583.00 – AUD $638.00 inc. GST

$POA

AUD $194.70 inc. GST

AUD $324.50 – AUD $364.10 inc. GST

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CLS-WT

AUD $94.60 – AUD $95.70 inc. GST

AUD $135.30 inc. GST

AUD $237.60 inc. GST

AUD $580.80 inc. GST

AUD $575.30 inc. GST

AUD $304.70 inc. GST

AUD $465.30 inc. GST

SECTION 6 — CTA BAR

Need the Right Room Sensor Output for Your Controller?

Match the sensor output to the controller input: use a 0–10 V or 4–20 mA room sensor on an analogue input, or a Modbus RTU or BACnet MS/TP device on a shared bus. Confirm the signal type and device addressing before you order, and our engineers verify point mapping and dispatch held lines the same day.

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SECTION 7 — DETAILED CONTENT

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Room Temperature and Humidity Sensor Fundamentals

A room temperature sensor is a fixed field device that converts space temperature into an analogue or digital signal for a Building Management System controller, and a humidity sensor adds relative-humidity measurement in the same housing. ABB Cylon transmitters output 0–10 V, 4–20 mA or Modbus RTU with ±3% RH humidity accuracy, so most rooms use one combined sensor rather than two devices.

Output type sets the wiring. A voltage or current temperature sensor lands on a controller analogue input, isolated from IP; a Modbus or BACnet device shares an addressed bus. A PT1000 element interchanges between units without recalibration, and an NTC element gives higher sensitivity across a narrow band. Specify the sensing range to the space, typically 0–50 °C for occupied rooms; wider-range temperature sensors suit plant areas.

Humidity is the second axis. A capacitive humidity sensor tracks relative humidity for condensation, mould and comfort control, rated to 90% RH non-condensing. Every humidity sensor ships paired with temperature in one housing, so a single combined sensor covers both points.

Gas is the third axis. A room CO2 sensor drives demand-controlled ventilation by reading carbon dioxide as an occupancy proxy, and a wall CO2 sensor instead reads carbon monoxide in plant rooms and carparks. A room CO2 air quality sensor at breathing height holds indoor air quality inside the design band.

ABB FusionAir FA-THC Smart Sensor Range

The FusionAir smart sensor connects to ABB Cylon FLXeon and CB Line controllers over an RS-485 sensor bus, acting as a networked smart room sensor rather than a standalone node. One FusionAir temperature sensor scales from a temperature-only node to a combined CO2 unit, and every FusionAir smart temperature sensor is configured touch-free over Bluetooth.

The FA-TH-D, FA-THV-D and FA-THC-D add a temperature and humidity sensor with display for occupant-facing rooms, while the FA-T, FA-TH, FA-THV and FA-THC are display-free. The table maps every variant to its measurement set and display.

<w:shd w:fill="1f4e79" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000032"><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:color w:val="ffffff"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Variant	<w:shd w:fill="1f4e79" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000033"><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:color w:val="ffffff"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Measurement	<w:shd w:fill="1f4e79" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000034"><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:color w:val="ffffff"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Display
<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000035"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-T	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000036"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature only (passive)	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000037"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">None
<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000038"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-TH	<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000039"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature + humidity	<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="0000003A"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">None
<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="0000003B"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-THV	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="0000003C"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature + humidity + VOC (Sensirion SGP40)	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="0000003D"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">None
<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="0000003E"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-THC	<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="0000003F"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature + humidity + CO2 (NDIR)	<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000040"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">None
<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000041"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-TH-D	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000042"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature + humidity	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000043"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Capacitive-touch backlit LCD
<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000044"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-THV-D	<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000045"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature + humidity + VOC (Sensirion SGP40)	<w:shd w:fill="eef3f8" w:val="clear"/><w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000046"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Capacitive-touch backlit LCD
<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000047"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-THC-D	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000048"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Temperature + humidity + CO2 (NDIR)	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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="00000049"><w:pPr><w:rPr/></w:pPr><w:r w:rsidDel="00000000" w:rsidR="00000000" w:rsidRPr="00000000"><w:rPr><w:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">Capacitive-touch backlit LCD

The FA-T is a passive temperature sensor returning a resistance signal, and each FusionAir humidity sensor holds ±3% RH across 0–90% RH. Units run on 24 V AC or 12–24 V DC at up to 3 VA, ten per controller bus, with a programmable RGB status LED.

On the FA-THC and FA-THC-D, the NDIR CO2 sensor self-calibrates against a 400 ppm baseline after 24 hours, so the space needs periodic fresh air to hold accuracy on this smart temperature sensor.

FusionAir setpoint adjustment can also drive lighting and sunblind outputs — see the range of smart scene panels and wall controls [Link to: Smart Controls & Switches Sub-Category Page].

ABB Cylon CLS-RTH Room Transmitters

The CLS-RT-1 is a PT1000 room temperature sensor and the CLS-RT-2 is an alternative-element room temperature sensor, both passive temperature sensors any ABB Cylon analogue input reads without a bus address.

The CLS-RTH is ABB Cylon’s core wired temperature and humidity sensor: the CLS-RTH-3V100 and CLS-RTH-3V200 output 0–10 V, the CLS-RTH-3A100 and CLS-RTH-3A200 output 4–20 mA, and the integrated humidity sensor holds ±3% RH matched to the duct range. This CLS-RTH dual-measurement transmitter is factory-matched, and its humidity sensor needs no field trim.

These ABB Cylon temperature sensors make a dependable smart temperature sensor for VAV, fan-coil and perimeter zones on analogue inputs. Wire any to a compatible ABB Cylon field controller [Link to: BACnet Controllers Sub-Category Page] for the BACnet network.

For fan-coil unit thermostats and zone temperature control that pair with these room transmitters, see the range of fan-coil thermostats and FCU controllers [Link to: Smart Thermostats & FCU Controllers Sub-Category Page].

ABB Cylon CLS-RCO2 and CLS-WCO Gas Sensors

The CLS-RCO2-0VA0 is a room CO2 sensor with dual 0–10 V and 4–20 mA outputs, and the CLS-RCO2-0M0 is a Modbus RTU CO2 sensor reading 400–2000 ppm at ±50 ppm ±5%. Either serves as a room CO2 air quality sensor on a fresh-air loop.

The CLS-WCO-V1, CLS-WCO-A1 and CLS-WCO-M1 are wall carbon monoxide (CO) transmitters reading 0–200 ppm at ±5% full scale in 0–10 V, 4–20 mA and Modbus RTU, for plant rooms and carparks.

ABB Cylon CLS-RPM PM2.5 Room Sensors

The CLS-RPM-VA1 and CLS-RPM-VAM1 read fine particulate (PM2.5) from 0–500 µg/m³ with an on-board LCD and dual 4–20 mA and 0–10 V outputs, for offices and schools.

For dedicated particulate, VOC and gas detection beyond CO2, see the air quality and gas detection sensor range [Link to: Liquid Level & Air Quality Sensors Sub-Category Page].

Water and immersion temperature sensing, including the ABB Cylon CLS-WT range, is covered on the HVAC field sensors [Link to: HVAC Sensors Sub-Category Page] range.

ABB WRF04 and LW04 Room Sensors

The WRF04 (1S9SW140) is a surface-mount room temperature sensor with a passive NTC or PT element, and the WRF04P (1S9SW142) is the same room temperature sensor with a setpoint potentiometer. Neither is a smart temperature sensor.

The LW04 (1S9SW122) is a wall-mounted air-quality (VOC) sensor. All three mount on a standard wall box on a controller analogue input, a low-cost ABB Cylon smart room sensor option for basic zones.

Optergy BW-THCO2-M Wireless Sensor Range

The Optergy Air range is cable-free over a proprietary 2.4 GHz link — it is not LoRaWAN. BW-TH-M is a wireless temperature and humidity sensor; BW-THCO2-M adds a CO2 sensor; BW-THCO-M adds carbon monoxide; BW-THVOC-M adds TVOC. Each Optergy humidity sensor reports every 15 seconds on a 5-plus-year battery.

Room Sensors and Australian Building Compliance

Room sensor selection in Australia follows ventilation and indoor-environment rules, not hardware alone. A CO2 air quality sensor underpins demand-controlled ventilation under AS 1668.2 mechanical ventilation practice and the National Construction Code (NCC), while a humidity sensor supports condensation and thermal-comfort control.

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<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">CO2	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">AS 1668.2 / NCC demand-controlled ventilation; NABERS Indoor Environment	<w:tcMar><w:top w:w="60.0" w:type="dxa"/><w:left w:w="100.0" w:type="dxa"/><w:bottom w:w="60.0" w:type="dxa"/><w:right w:w="100.0" 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:color w:val="000000"/><w:sz w:val="19"/><w:szCs w:val="19"/><w:rtl w:val="0"/></w:rPr><w:t xml:space="preserve">FA-THC, CLS-RCO2, BW-THCO2-M
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For a National Australian Built Environment Rating System (NABERS) Indoor Environment or Green Star rating, a room temperature sensor and CO2 point trended through the BMS provide the evidence base. Trend these into the BMS software and dashboards [Link to: BMS Software & Licences Sub-Category Page] and surface them on plant-room BMS HMI displays [Link to: BMS HMI Displays Sub-Category Page]. Check the NABERS framework (nabers.gov.au) before finalising placement.

Why Specify Qantec for Room Sensors

Network Security for BMS Room Sensors

Analogue room sensors on 0–10 V or 4–20 mA are isolated from IP, but any Modbus RTU, BACnet MS/TP or wireless device joins your attack surface. Put the BACnet MS/TP trunk and the FusionAir sensor bus on a dedicated VLAN, reach controllers and the WBG-1000 only through a VPN tunnel, enforce role-based access controls, encrypt the BACnet/IP backhaul, and load only signed firmware to preserve firmware integrity across the ABB Cylon and Optergy estate.

Room Sensor Specification FAQ

What output signals do ABB Cylon room sensors provide?

ABB Cylon room transmitters output 0–10 V, 4–20 mA or Modbus RTU, chosen by model suffix. FusionAir smart sensors instead report over the controller’s RS-485 sensor bus, and the Optergy WBG-1000 gateway exposes its wireless sensors on BACnet/IP, BACnet MS/TP or Modbus RTU.

How often do room CO2 sensors need calibration?

The NDIR CO2 sensors here use automatic baseline calibration referencing roughly 400 ppm fresh air, so they self-correct in normally occupied buildings. FusionAir activates this after 24 hours and expects fresh-air exposure several times over three weeks; manual calibration is advisable every 6–12 months only for critical or poorly ventilated spaces.

What humidity accuracy do the ABB Cylon room transmitters deliver?

The CLS-RTH room temperature and humidity sensor range carries a typical humidity accuracy of ±3% RH, matched to the equivalent ABB Cylon duct transmitters. That tolerance suits comfort control, condensation management and NABERS Indoor Environment logging in commercial spaces.

Can Optergy Air wireless sensors connect to a non-Optergy BMS?

Yes. The WBG-1000 presents up to seven Optergy Air sensors to any BACnet or Modbus head-end over standard BACnet/IP, BACnet MS/TP or Modbus RTU, with no edge controller required. The link is a proprietary 2.4 GHz radio, not LoRaWAN, so no gateway spectrum planning is needed.

Technical review: Stephen Ford, Business Development Manager — Qantec Automation.

SECTION 8 — FOOTER CTA SECTION

Order ABB Cylon and Optergy Room Sensors in Australia

Qantec Automation holds the ABB FusionAir, ABB Cylon CLS and Optergy Air ranges in Australian stock, with engineers who confirm output, addressing and point mapping before dispatch. Ask for trade pricing, datasheets and same-day quotes on any room temperature and humidity sensor, CO2 sensor or wireless line.

[ Request Trade Pricing ] [ Download Datasheets ] [ Talk to an Engineer ]

Qantec Automation · ABN 52 623 495 901

SECTION 9 — EXTENDED FAQ

How many room sensors can I connect to one BACnet MS/TP trunk?

A single BACnet MS/TP trunk supports up to 127 addressable devices, but the practical limit is set by transceiver load and baud rate. RS-485 allows 32 unit loads per segment, so quarter-load sensors reach roughly 127 nodes while full-load devices cap near 32. At 9600 baud the usable count falls to about 25 for token-passing efficiency, so run 38,400 baud and add a repeater or router where a trunk exceeds these limits or 1,200 m.

Should I specify a CO2 or a VOC room sensor?

Specify a CO2 sensor when the goal is occupancy-based ventilation, and a VOC sensor when the concern is chemical off-gassing. People exhale carbon dioxide, so a room CO2 sensor such as the FA-THC tracks how heavily a space is occupied and drives demand-controlled ventilation, typically holding below 1000 ppm. A VOC model like the FA-THV instead detects solvents, cleaning agents and off-gassing from finishes that CO2 cannot register. Many specifications fit both.

Why do some FusionAir installations need an external power supply?

FusionAir units running active RGB accent lighting can draw more current than an older controller’s sensor port supplies. The CBX range and some earlier CBXi, FBXi and FBVi controllers were not uprated for full-power LED use, so ABB recommends powering the sensor’s 24 V terminals from the controller supply, or an external 24 V source, whenever multiple FusionAir devices share one RS-485 bus. Newer CBXi controllers deliver more sensor-bus power.

What is the difference between PT1000 and NTC room temperature elements?

A PT1000 is a platinum resistance element with a near-linear, highly repeatable output, while an NTC is a thermistor with higher sensitivity across a narrow band. The CLS-RT-1 uses PT1000, which interchanges between units without recalibration and holds accuracy over wide ranges — the reason it dominates commercial room temperature sensor design. NTC elements cost less and suit tight comfort bands but drift more at the extremes. Match the element to the controller input type.

Can I mix ABB Cylon wired sensors and Optergy wireless sensors on one BMS?

Yes — wired ABB Cylon transmitters and wireless Optergy Air sensors can share the same BMS because both ultimately present as standard points. Hard-wired transmitters land on a controller analogue input or Modbus bus, while Optergy sensors reach the head-end through the WBG-1000 gateway as BACnet or Modbus objects. Choose wired where cabling is easy and wireless for retrofit or heritage spaces where running cable is impractical.

Where should room temperature and humidity sensors be mounted?

Mount room sensors on an interior wall about 1.5 m above the floor, away from direct sun, diffusers and heat sources. Avoid outside walls, positions behind doors, and any spot above or below supply-air grilles, since draughts and radiant heat skew both temperature and humidity readings. For CO2, breathing height improves the occupancy correlation that drives ventilation. Poor placement is the most common cause of comfort complaints.

What humidity range do these room sensors operate across?

The ABB and Optergy room sensors operate up to 90–95% relative humidity, non-condensing, across a nominal 0–50 °C indoor band. Non-condensing is the key constraint: surface condensation on the sensing element causes drift and false readings, so avoid unconditioned plant rooms, pool halls and external positions where dew point is reached. For those wet or outdoor duties, specify a sealed field sensor rather than a room unit.

Do Optergy Air wireless sensors interfere with building Wi-Fi?

Optergy Air sensors share the 2.4 GHz band with Wi-Fi and Bluetooth but transmit in low-duty, short packets that minimise contention. Because each sensor reports only every 15 seconds, its on-air time is tiny next to continuous Wi-Fi traffic. Site the WBG-1000 gateway with clear line of sight to its sensors and away from dense access-point clusters, and keep to the seven-sensor-per-gateway limit to preserve reliable coverage.

SECTION 10 — SCHEMA IMPLEMENTATION NOTES

• Four JSON-LD blocks below: ItemList (product families), FAQPage (Short FAQ ×4 + Extended FAQ ×8), Organization, and a separate WebPage + Person (reviewer).

• FAQPage answers are generated from the SAME data array as the visible on-page FAQ — keep byte-identical parity on any edit (punctuation, en-dashes, °C, ppm, symbols).

• The reviewer Person node now sits inside its own WebPage block (reviewedBy + lastReviewed), NOT inside Organization. Person @id = #reviewer-sford (Stephen Ford).

• ItemList “url” values and the WebPage “url” are PLACEHOLDER (#) until live product/category URLs exist. Replace ABN/phone/email placeholders if not injected globally.

• VideoObject OMITTED: no verified official ABB/Optergy YouTube or Vimeo video found for these specific SKUs. Do not add placeholder VideoObject.

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"text": "A PT1000 is a platinum resistance element with a near-linear, highly repeatable output, while an NTC is a thermistor with higher sensitivity across a narrow band. The CLS-RT-1 uses PT1000, which interchanges between units without recalibration and holds accuracy over wide ranges — the reason it dominates commercial room temperature sensor design. NTC elements cost less and suit tight comfort bands but drift more at the extremes. Match the element to the controller input type."

}

{

"@type": "Question",

"name": "Can I mix ABB Cylon wired sensors and Optergy wireless sensors on one BMS?",

"acceptedAnswer": {

"@type": "Answer",

"text": "Yes — wired ABB Cylon transmitters and wireless Optergy Air sensors can share the same BMS because both ultimately present as standard points. Hard-wired transmitters land on a controller analogue input or Modbus bus, while Optergy sensors reach the head-end through the WBG-1000 gateway as BACnet or Modbus objects. Choose wired where cabling is easy and wireless for retrofit or heritage spaces where running cable is impractical."

}

{

"@type": "Question",

"name": "Where should room temperature and humidity sensors be mounted?",

"acceptedAnswer": {

"@type": "Answer",

"text": "Mount room sensors on an interior wall about 1.5 m above the floor, away from direct sun, diffusers and heat sources. Avoid outside walls, positions behind doors, and any spot above or below supply-air grilles, since draughts and radiant heat skew both temperature and humidity readings. For CO2, breathing height improves the occupancy correlation that drives ventilation. Poor placement is the most common cause of comfort complaints."

}

{

"@type": "Question",

"name": "What humidity range do these room sensors operate across?",

"acceptedAnswer": {

"@type": "Answer",

"text": "The ABB and Optergy room sensors operate up to 90–95% relative humidity, non-condensing, across a nominal 0–50 °C indoor band. Non-condensing is the key constraint: surface condensation on the sensing element causes drift and false readings, so avoid unconditioned plant rooms, pool halls and external positions where dew point is reached. For those wet or outdoor duties, specify a sealed field sensor rather than a room unit."

}

{

"@type": "Question",

"name": "Do Optergy Air wireless sensors interfere with building Wi-Fi?",

"acceptedAnswer": {

"@type": "Answer",

"text": "Optergy Air sensors share the 2.4 GHz band with Wi-Fi and Bluetooth but transmit in low-duty, short packets that minimise contention. Because each sensor reports only every 15 seconds, its on-air time is tiny next to continuous Wi-Fi traffic. Site the WBG-1000 gateway with clear line of sight to its sensors and away from dense access-point clusters, and keep to the seven-sensor-per-gateway limit to preserve reliable coverage."

}

]

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