Description
The Siemens QFM3101 is a professional-grade duct-mount relative humidity sensor engineered for building automation and HVAC control applications. Designed for reliable, continuous monitoring of duct air humidity, this sensor delivers a precise 4-20mA analog output signal across the full 0–100% relative humidity range, making it compatible with a wide variety of building automation systems and controllers.
Adjustable Insertion Depth
One of the standout features of the QFM3101 is its adjustable probe insertion depth, which can be set anywhere between 3.5 and 8 inches. This flexibility allows the sensor to be optimally positioned within ductwork of varying sizes, ensuring accurate readings regardless of duct geometry.
Key Features
- Output Signal: 4-20mA analog for broad system compatibility
- Measurement Range: 0–100% Relative Humidity (RH)
- Adjustable Probe Insertion Depth: 3.5 to 8 inches
- Connection Type: Terminal block for secure, reliable field wiring
- No display — clean, compact design suited for in-duct installation
- Designed for duct-mount applications in commercial and light industrial HVAC systems
- Manufactured by Siemens Building Technologies, a global leader in building automation
Application
The QFM3101 is ideal for use in air handling units, VAV systems, and commercial HVAC ductwork where accurate humidity monitoring is critical for occupant comfort, energy efficiency, and indoor air quality control. The terminal block connection simplifies field installation and wiring, while the no-display design keeps the sensor profile low-profile and unobtrusive.
Why Choose Siemens QFM3101?
Siemens Building Technologies is trusted by mechanical contractors, building automation engineers, and HVAC professionals worldwide. The QFM3101 combines robust construction with straightforward installation, delivering dependable humidity data to your BAS or DDC controller for years of reliable service.
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