Safe Operation: Built-in thermal overload protection prevents motor burnout during unexpected voltage spikes or mechanical stalls

ensuring the control board receives accurate continuity signals for burner ignition or pump activation

Industrial Grade Material: Manufactured from high-temperature resistant elastomers to ensure boiler system sealing longevity

Built to handle the rigorous demands of commercial and industrial boilers

meaning it does not require a common 'C' wire for operation

Siemens Building Technology QFM2160U Sensor 322838-754 Safe Operation: Built-in thermal overloadThe Siemens Building Technology QFM2160U Sensor is a high performance Duct RH Sensor designed for critical HVACR applications where long term stability and precision are paramount. This Siemens Q Series sensor monitors relative humidity and temperature in air ducts, providing dual 0 10Vdc output signals for seamless integration with building automation systems. Built for the rigors of industrial environments, the QFM2160U features a capacitive sensing