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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 QFA3280.FWSC is a wall-mount room temperature and humidity sensor with a digital display and plastic housing. It provides a 4 to 20 mA humidity output, a temperature accuracy of ±0.90°F, and a relative…

SKU 3G-OTH-70871

Also listed as: QFA3280FWSC · QFA3280 FWSC · QFA3280-FWSC

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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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Siemens
Manufacturer Part Number
QFA3280.FWSC
Type
Digital, 55°F to 95°F, Polycarbonate, Plastic
Display
Digital Display
Housing
Plastic
Includes
Anchors
Product Type
Room Temperature and Humidity Sensor
Humidity Output
4 to 20 mA
Mounting Location
Wall Mount
Temperature Accuracy
±0.90°F
Relative Humidity Range
0 to 100%
Electrical Connection Type
Plug-In
Relative Humidity Accuracy
±2% of Full Scale
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 QFA3280.FWSC is a wall-mount room temperature and humidity sensor with a digital display and plastic housing. It provides a 4 to 20 mA humidity output, a temperature accuracy of ±0.90°F, and a relative humidity accuracy of ±2% of full scale over a 0 to 100% range. This plug-in sensor is compatible with building automation systems and includes anchors for installation.

Frequently Asked Questions

What is the Siemens QFA3280.FWSC temperature and humidity sensor used for?

The Siemens QFA3280.FWSC is a wall-mount room sensor that measures temperature from 55°F to 95°F and relative humidity from 0 to 100%. It provides a 4 to 20 mA humidity output and is compatible with building automation systems for HVAC control in commercial facilities.

What are the specifications of the Siemens QFA3280.FWSC sensor?

The Siemens QFA3280.FWSC is a digital wall-mount sensor with a plastic housing and digital display. It has a temperature accuracy of ±0.90°F, relative humidity accuracy of ±2% of full scale, and a 4 to 20 mA humidity output. It includes anchors and uses a plug-in electrical connection.

Where to buy the Siemens QFA3280.FWSC sensor worldwide?

3G Electric supplies the Siemens QFA3280.FWSC temperature and humidity sensor to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this building automation compatible sensor.

How to install the Siemens QFA3280.FWSC wall-mount sensor?

Mount the Siemens QFA3280.FWSC sensor on a wall at a representative room height, away from direct sunlight or drafts. Use the included anchors for secure attachment. Connect the plug-in terminals per the wiring diagram for building automation systems. Ensure the 4 to 20 mA loop is properly terminated.

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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