Description
The Siemens QFA32SS.EWNN is a precision room relative humidity (RH) sensor engineered for building automation and HVAC control applications. Designed to deliver accurate, reliable indoor humidity measurement, this sensor supports a full 0–100% relative humidity sensing range and offers a selectable output signal — either 0–10 Vdc or 4–20 mA — providing maximum flexibility for integration with a wide variety of building automation systems and controllers.
With a terminal block connection type and no display, the QFA32SS.EWNN is ideally suited for installations where a clean, low-profile wall-mount appearance is desired and readout is handled remotely by the BAS or controller. The dual-output option allows field technicians and system integrators to select the signal type that best matches the connected controller input, reducing the need for signal converters or additional hardware.
Key Features
- Measures 0–100% relative humidity (RH)
- Selectable output signal: 0–10 Vdc or 4–20 mA
- Terminal block wiring connection for easy field installation
- No display — clean, unobtrusive room-mount design
- Designed for building automation and HVAC control system integration
- Siemens Building Technology quality and reliability
Applications
- Commercial building HVAC humidity monitoring
- Building automation system (BAS) integration
- Humidity control loops for AHUs, ERVs, and dehumidification systems
- Office buildings, schools, hospitals, and other commercial facilities
Specifications
- Model: QFA32SS.EWNN
- Brand: Siemens Building Technology
- Sensing Range: 0–100% RH
- Output Signal: 0–10 Vdc or 4–20 mA (selectable)
- Connection Type: Terminal Block
- Display: None







Reviews
There are no reviews yet.