The QSM2162 duct sensor measures the concentration of fine particulate matter PM2.5 and PM10, relative humidity, and temperature in heating and air conditioning systems. For fine particles, the output is a moving average of the latest sensor data over the last 10 seconds. The sensor is capable of communicating with all controllers processing signals of 0...10 V / 0...5 V / 4...20 mA.

The sensor is equipped with 3 outputs, allowing you to choose what the sensor will measure: fine particulate matter PM2.5, fine particulate matter PM10, relative humidity, or temperature.

Relative humidity is measured within an application range of 5...95% RH without condensation and within a total measuring range of 0...10% RH. The measurement accuracy is 3-5% RH. The temperature is measured by the sensor in a selectable range of 0...50 °C or -35...35 °C.

This sensor is not intended as a warning safety signal for smoke or gas leaks. Additionally, the sensors are not designed for outdoor use.