Siemens Building Technology QFM2171 326058-756 Ensure you verify the mounting

Ensure you verify the mounting hole alignment against your specific model’s serial plate to confirm a 1:1 match before securing the new hardware

20 and UL 372 standards

Common Questions: What is the difference between an auto-reset and manual-reset limit switch

ensuring a tight fit that prevents bypass air from compromising system efficiency

this SPST (Single Pole Single Throw) switch ensures the blower motor is moving sufficient air for combustion before allowing the ignition sequence to proceed

Siemens Building Technology QFM2171 326058-756 Ensure you verify the mountingThe Siemens Building Technology QFM2171 is a high performance duct relative humidity and temperature sensor designed for integration into commercial HVAC systems. This Q Series duct sensor utilizes a 4 20mA output signal for both RH and temperature, providing stable and precise data transmission even over long wire runs. Engineered for 5% accuracy, the QFM2171 is ideal for BAS (Building Automation Systems) that require reliable monitoring of supply,