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Siemens Temperature and Humidity Sensor: Wall Mount, Digital, 55°F to 95°F, Polycarbonate - Room Temperature & Humidity Sensors
SiemensRoom Temperature & Humidity Sensors

Siemens Temperature and Humidity Sensor: Wall Mount, Digital, 55°F to 95°F, Polycarbonate

The Siemens QFA3230.FWSN is a wall-mounted room temperature and humidity sensor with a digital display and plastic housing. It offers a temperature accuracy of ±0.40°F, a relative humidity range of 0 to 100% with ±2%…

SKU 3G-OTH-70853

Brand
Siemens
Item
Temperature and Humidity Sensor: Wall Mount, Digital, 55°F to 95°F, Polycarbonate
Category
Room Temperature & Humidity Sensors
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Technical Specifications

Siemens
Manufacturer Part Number
QFA3230.FWSN
Type
Digital, 55°F to 95°F, Polycarbonate, Plastic
Display
Digital Display
Housing
Plastic
Includes
Matching Gaskets
Product Type
Room Temperature and Humidity Sensor
Humidity Output
4 to 20 mA
Mounting Location
Wall Mount
Temperature Accuracy
±0.40°F
Relative Humidity Range
0 to 100%
Electrical Connection Type
Screw Terminals
Relative Humidity Accuracy
±2% of Full Scale
Compatible Building Automation Protocols
BACnet MS/TP
For Use With Building Automation Systems
Building Automation System Compatible
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens QFA3230.FWSN is a wall-mounted room temperature and humidity sensor with a digital display and plastic housing. It offers a temperature accuracy of ±0.40°F, a relative humidity range of 0 to 100% with ±2% of full scale accuracy, and a 4 to 20 mA humidity output. The sensor includes matching gaskets, uses screw terminals for electrical connection, and is compatible with BACnet MS/TP building automation protocols.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens room temperature & humidity sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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