this kit utilizes Buna-N elastomers

Whether you are performing a repair or a system upgrade

For ease of installation in tight control cabinets

it features a rigid mount and ball bearing construction to ensure axial stability and reduced friction during continuous operation

Siemens Building Technology QFA3212.EWSN Sensor 328140-751 this kit utilizes Buna-N elastomersThe Siemens QFA3212. EWSN is a high precision room humidity and temperature sensor designed for demanding commercial HVAC and building automation systems. Built for seamless integration with Siemens Terminal Equipment Controllers (TECs) and APOGEE systems, this unit provides critical environmental feedback to ensure optimal indoor air quality. It serves as a direct professional upgrade and replacement for the QFA3212. EWNN, maintaining the same