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Industrial Grade Insulation: Class F coil rating ensures thermal stability during continuous energization
calibrated specifically for natural gas applications
non-adjustable factory-calibrated setpoint
The epoxy-encapsulated construction ensures protection against moisture and vibration
Siemens Building Technology QFM3171 Sensor Freon Industrial Grade Insulation: Class FThe Siemens QFM3171 is a high precision duct relative humidity and temperature sensor designed for demanding HVAC applications where signal stability is paramount. Engineered for seamless integration into building automation systems (BAS), this unit provides dual 4 20mA output signals for both humidity and temperature, ensuring reliable data transmission even over long cable runs. For technicians performing retrofits, the QFM3171 serves as the direct
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