The QFM21.. duct sensors are for use in air ducts of ventilation and air conditioning plant for acquiring the relative humidity and the temperature. The sensors are used as control sensors in the supply or extract air; as reference sensors, e.g. for shifting the dew point; as limit sensors, e.g. in connection with steam humidifiers or for measured value indication.
The QFM Series Duct Relative Humidity and Relative Humidity/Temperature Sensors monitor and transmit changes in humidity and temperature to the building control systems.
The QFM Series Duct Relative Humidity and Relative Humidity/Temperature Sensors are especially suited for applications where precise, stable humidity sensing is required.
| Mfr. Part No. | Description |
| QFM2120 | Duct Humidity/Temperature Sensor, Hum 0…10V; Temp LG-Ni1000 |
| QFM2160 | Duct Humidity/Temperature Sensor, Hum 0…10V; Temp 0…10V |
| QFM2171 | Duct Humidity/Temperature Sensor, Hum 4…20mA; Temp 4…20mA |
| QFM2100 | Duct Humidity Sensor, 0…10V |
| QFM2101 | Duct Humidity Sensor, 4…20mA |
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