Siemens Building Technology QFM2171 326058-756 This Barber Colman MP-2130-500 is

This Barber Colman MP-2130-500 is architecturally identical to the EA-21 and EA-23 series

20 and UL 372 standards

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

Can this module replace the older Kriwan INT69TM protectors

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

Siemens Building Technology QFM2171 326058-756 This Barber Colman MP-2130-500 isThe 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,