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SIEMENS QFM2171 TEMPERATURE AND PRESSURE SENSOR
SIEMENS QFM2171 TEMPERATURE AND PRESSURE SENSOR

SIEMENS QFM2171 TEMPERATURE AND PRESSURE SENSOR

  • Temperature and humidity measurement in ventilation and air conditioning ducts
  • Building automation systems
  • Energy management and monitoring
  • Industrial applications requiring humidity and temperature control
  • Dew point monitoring and control
  • Used as reference or limit sensor
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    The SIEMENS QFM2171 is a duct-mounted sensor designed to measure both temperature and relative humidity in air ducts, commonly used in HVAC and building automation systems. It provides separate 4...20 mA output signals for temperature and humidity.
  • Temperature Range: 0...50°C, -35...+35°C, or -40...+70°C (selectable)
  • Humidity Range: 0...100% RH (non-condensing)
  • Output Signal: 4...20 mA (2-wire) for both temperature and humidity
  • Operating Voltage: DC 13.5...35 V
  • Accuracy: ±3% RH (within comfort range)
  • Protection Class: IP54
  • Operating Temperature: -15...+60°C (housing)
  • Operating Humidity: 0...95% RH (non-condensing)
  • Mounting: Duct type, supplied with mounting flange and cable gland
  • Weight: Approx. 200 grams
  • Material: Plastic housing, filter cap