Siemens® QFM2100 Duct Sensor


Siemens® QFM2100 Duct Sensor acquires the relative humidity in the air duct via its capacitive humidity sensing element whose electrical capacitance changes as a function of the relative humidity. This sensor acquires the temperature in the air duct via its sensing element whose electrical resistance changes as a function of the temperature.


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Country : United States

Product Description

Siemens® QFM2100 Duct Sensor is for use in air ducts of ventilation and air conditioning plant for acquiring.

Features of Siemens® QFM2100 Duct Sensor :

  • Control sensors in the supply or extract air.
  • Reference sensors, e.g. for shifting the dew point.
  • Limit sensors, e.g. in connection with steam humidifiers.
  • Limit sensors, e.g. for connection to a building automation and control system.for measured value indication or


Additional Information

Weight 1 kg
Model No
Accuracy 0.1 ºC
Operating Voltage
Immersion length
Time constant
Connection, electrical
Signal output humidity
Power Consumption
IP Rating
Type of fixing
Analog Output, Signal DC 0 to 10 V, DC 4 to 20 mA


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