Siemens QFM2160 Duct Sensor


(GST 18% Exclusive)


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(However please contact store for precise delivery schedule. Backorder also allowed)

Siemens QFM2160 Duct Sensor acquires the relative humidity in the air duct whose electrical capacitance changes as a function of the relative humidity via its capacitive humidity sensing element. This sensor also acquires the temperature in the air duct via its sensing element whose electrical resistance changes as a function of the temperature.

Applications: Air Conditioning and Ventilating Systems, Pharma Labs, Food Processing Industries, HVAC, automobiles, EDP Centers, and Hospitals.

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Siemens QFM2160 Duct Sensors are for use in air ducts of ventilation and air conditioning plants for acquiring relative humidity and temperature. It is used as Control sensor in the supply or extract air, a Reference sensor, e.g. for shifting the dew point, a Limit sensor, e.g. in connection with steam humidifiers, a Limit sensor, e.g. for measured value indication or connection to a building automation and control system

Features of Siemens QFM2160 Duct Sensor:

  • This Humidity Duct Sensor has an output of 4 to 20 mA or 0 to 10 Vdc output signals
  •  A high degree of accuracy
  • Removable, replaceable sensing tip(2% and 2% certified models)
  •  Versions with LCD displays are also available

Additional information

Weight 2 kg


Model No


Measuring Parameters

Temperature, Humidity

Temperature Range

0 °C to 50 °C, −35 °C to +35 °C, -40 °C to 70 °C


±0.8 K for 15 to 35 °C ; ±1.0 K for 35 to 50 °C

Humidity Range

0 to 95 % RH


±3 % RH for 30 to 70 % RH and 23 °C

Operating Temperature

−15 °C to +60 °C

Operating Humidity

0 to 95%RH (non condensing)

Operating Voltage

AC 24 V, DC 13.5…35 V

Sensing element, temperature

DC 0…10 V

Time constant


Immersion length

90…154 mm

Connection, electrical

Screw terminals

Type of fixing


Analog Output, Signal

DC 0…10 V; DC 4…20 mA

Signal output temperature

DC 0 to 10 V

Signal output humidity

DC 0…10 V

Degree of Protection


Supply Scope

1 unit of Siemens QFM 2160 with Instruction Manual


222 X 80 X 60 mm


180 Grams

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Duct sensor

Siemens QFM2160 Duct Sensor


(GST 18% Exclusive)

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