Key Benefits: Precision Sensing: The 4-foot averaging bulb eliminates hot or cold spots in the air stream

Its die-cast lower housing and painted steel upper casing are built to withstand standard mechanical room conditions while providing precise 2-position control

This SPNO (Single Pole Normally Open) switch is factory-calibrated to a -

System Protection: Integrated stainless steel strainer prevents sediment from damaging sensitive fixtures and downstream equipment

Heat and Oil Resistance: Built with SBR rubber compounds that withstand typical ambient industrial contaminants and elevated operating temperatures

Siemens Building Technology QFA32SS.EWNN Sensor 326058-756 Key Benefits: Precision Sensing: TheThe Siemens Building Technology QFA32SS. EWNN Sensor is a high precision field device designed for critical HVAC monitoring and Building Automation Systems (BAS). Built without a display (No HMI) and featuring a clean "No Logo" aesthetic, this room humidity and temperature sensor provides 2 percent accuracy for demanding environments like laboratories, data centers, and clean rooms. It supports field selectable 0 10Vdc, 0 5Vdc, and 4 20mA output