Siemens QFM3101 Duct Relative Humidity Sensor 2%

The Siemens QFM3101 Duct Relative Humidity Sensor is a precision instrument for precise measurement of relative humidity in HVAC duct systems. Measuring range is 0 to 95% RH, and accuracy is ±2% RH. With a 4mA to 20 mA control signal, the sensor is compatible with many HVAC control systems. Screw terminals provide an easy path to wire the QFM3101 with 18 AWG wire and 13.5 to 35 VDC voltage operation. The sensor is constructed from durable poly material and is designed able to withstand the demands of an HVAC environment.