Siemens QFM2100 Duct Relative Humidity Sensor 0-10V Output

QFM2100

The Siemens QFM2100 duct humidity sensor is extensively installed across commercial office towers, hospitals, cleanrooms, data centers, and industrial manufacturing plants. It serves as the primary environmental feedback sensor installed in supply, return, or exhaust air ducts for managing humidifiers, dehumidification coils, and fresh air mixing dampers. By providing precise, drift-free relative humidity measurement directly to Desigo or third-party BMS controllers, this Symaro sensor ensures optimal indoor air quality (IAQ) and maximum energy efficiency.

Key Features & Technical Specifications：

• 0...10 V DC Active Output: Converts humidity measurement into a standard linear 0...10 V DC signal compatible with standard DDC controllers.

• 0...100% r.h. Sensing Range: Accurately measures relative humidity across the entire range from 0% to 100% r.h.

• Capacitive Humidity Element: Utilizes a high-precision capacitive sensing element offering exceptional long-term stability and fast response times.

• IP54 Protective Enclosure: Rugged housing design with IP54 protection rating against dust ingress and moisture splashing inside ductwork.

• Immunity to Contamination: Sensor probe is optimized for duct airflow with protective filter caps to resist dust and particle fouling.

• Easy Duct Flange Mounting: Supplied with an adjustable mounting flange for fast, secure installation on standard circular or rectangular air ducts.

• Wide Operating Voltage: Powered by standard AC 24 V or DC 13.5...35 V supply lines for seamless panel power integration.

Advantage

1.We are a certified system integrator holding an official Siemens PI license/certificate.

2.Short delivery times, guaranteed product quality, and a 2-year warranty.

3.We at GKone own our own factory, which allows us to stock standard Siemens models and manufacture industrial control cabinets.

4.Factory staff are trained in packaging, ensuring secure packing.