Precision Control: Acts as the central master control unit

How many dampers can be connected to each zone

permitting the use of smaller sheaves without sacrificing transmission efficiency

While it provides excellent mechanical retention and basic debris protection

Siemens Building Technology QFM2171 THPU32HP7Y Precision Control: Acts as theThe 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,