SKU
QFA3171

QFA3171 - Siemens Room sensor for humidity (4...20 mA) and temperature (4...20 mA)

£293.99 £244.99
On request
Next Supplier Stock Update: 18/04/2026
Free delivery over £30
Manuals & Datasheets
 DATA-SHEET 
DATASHEET
 
Product typeSensors & Stats
IP ratingIP65
ManufacturerSiemens
Sensor TypeHumidity
Sensor characteristicsOutdoor

Find every component of your Air Handling system at iacs. Humidity, CO2 Air Quality and Temperature Sensors manufactured by Siemens that are now on hand can all be supplied in 5 to 7 working days.

The Siemens QFA3171 is a Sensor that is employed in HVAC solutions and which offers clear Humidity and Temperature measurement.

The Sensor QFA3171 is used specifically for indoor spaces.

At iacs, you can get the best Siemens Sensor for your system at the right price.

Consult the Siemens custom datasheet above or contact iacs via email for personal ised ass istance if you have queries about size or installation.

Introducing the Siemens QFA3171 Room Sensor for Humidity and Temperature, a reliable and accurate sensor designed to monitor the humidity and temperature of indoor spaces. This sensor is perfect for use in a variety of applications, including industrial and commercial settings.

The Siemens QFA3171 Humidity and Temperature Sensor for Room Monitoring features signal outputs for both humidity and temperature, with a DC 4...20 mA signal output for each. The sensor operates on a DC voltage range of 13.5…35 V, ensuring consistent and reliable performance.

The measuring range for temperature is wide, with options for 0…50 °C, -35…35 °C, and -40…70 °C. The humidity measurement range is 0…100 % r.h. The sensor provides high measurement accuracy, with an accuracy of ±0.6 K at 15…35 °C and 23% r.h. and an accuracy of ±2% r.h. for measurements between 0…100 % r.h.

The Siemens QFA3171 Room Sensor for Humidity and Temperature Monitoring features a time constant of 20 seconds for humidity measurement and 510 seconds for temperature measurement, ensuring fast and reliable readings. The sensor also features screw terminals for easy electrical connections.

The industrial-grade Siemens QFA3171 Room Sensor with Humidity and Temperature Monitoring features a degree of protection of IP65 / IP40, ensuring that it is resistant to dust and water ingress. The dimensions of the sensor are 80 x 144 x 39 mm, making it easy to install in a variety of locations.

In summary, the Siemens QFA3171 Room Sensor for Humidity and Temperature Monitoring is an industrial-grade, accurate, and reliable sensor designed to monitor the temperature and humidity of indoor spaces. Whether you need to monitor environmental conditions in a commercial or industrial setting, this sensor is a great choice.