The Siemens fine dust duct sensor designed specifically for PM2.5 and PM10 measurements, as well as temperature and relative humidity readings. It operates on AC 24V or DC 15-35V power supply and offers signal outputs of DC 0-10V, DC 0-5V, or 4-20mA that are adjustable. With a range of use from -5 to 45°C and 5 to 95% relative humidity , this sensor is suitable for enhancing room comfort and optimizing energy consumption in ventilation and air conditioning systems. Measures PM2.5 and PM10 concentrations, relative humidity, and temperature Operating voltage AC 24V or DC 15-35V Signal outputs DC 0-10V or DC 0-5V or 4-20mA adjustable Range of use -5 to 45°C / 5 to 95% r.h. (non-condensing) Enhances room comfort and optimizes energy consumption in ventilation and air conditioning systems Suitable for demand-controlled ventilation Easy installation with supplied mounting flange and cable entry gland Comes with pre-installed AQS2100 in fine dust duct sensor High accuracy and reliable performance