Siemens Building Technology QFM2171 326058-756 Precise Monitoring: Built-in 2-10Vdc feedback

Precise Monitoring: Built-in 2-10Vdc feedback and two SPDT auxiliary switches provide superior system status oversight

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

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

the R104054-01 serves as the direct replacement for R47469-001

20 and UL 372 standards

Siemens Building Technology QFM2171 326058-756 Precise Monitoring: Built-in 2-10Vdc feedbackThe 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,