Siemens Temperature and Humidity Sensor: Wall Mount, -40°F to 158°F, 4 to 20 mA
The Siemens QFA3171 is a wall-mounted room temperature and humidity sensor with a plastic housing and no display. It provides dual 4 to 20 mA outputs for temperature and humidity, with a temperature accuracy of…
SKU 3G-OTH-71064
Also listed as: QFA 3171 · QFA-3171
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The Siemens QFA3171 is a wall-mounted room temperature and humidity sensor with a plastic housing and no display. It provides dual 4 to 20 mA outputs for temperature and humidity, with a temperature accuracy of ±0.54°F and relative humidity accuracy of ±2% of full scale over a 0 to 100% RH range. The sensor operates over a -40°F to 158°F range, uses screw terminals for electrical connection, and is compatible with LoRaWAN building automation protocols.
Frequently Asked Questions
What is the Siemens QFA3171 temperature and humidity sensor used for?
The Siemens QFA3171 is a wall-mounted room sensor that measures temperature and relative humidity for building automation systems. It outputs dual 4 to 20 mA signals for both parameters, making it suitable for HVAC control, environmental monitoring, and energy management in commercial or industrial facilities.
What are the specifications of the Siemens QFA3171?
The QFA3171 has a temperature range of -40°F to 158°F with ±0.54°F accuracy, and a relative humidity range of 0 to 100% with ±2% of full scale accuracy. It provides 4 to 20 mA outputs for both temperature and humidity, uses screw terminals, and is compatible with LoRaWAN protocols. The housing is plastic with no display.
Where to buy the Siemens QFA3171 worldwide?
3G Electric supplies the Siemens QFA3171 temperature and humidity sensor to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this part.
How to install the Siemens QFA3171 sensor?
Mount the QFA3171 on a wall in a representative room location, away from direct sunlight, drafts, or heat sources. Use screw terminals to connect 4 to 20 mA wiring for temperature and humidity outputs. Follow standard building automation wiring practices and ensure the sensor is compatible with your LoRaWAN system.
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Common applications for SiemensSiemens 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.
