For contractors managing HVAC preventative maintenance

this valve utilizes characterized ball valve technology to deliver equal percentage flow

Dual Voltage Versatility: Simplified wiring with 115V/230V compatibility

As a veteran-grade centrifugal wheel

Siemens Building Technology QFA32SS.EWSN Sensor 326058-758 For contractors managing HVAC preventativeThe Siemens Building Technology QFA32SS. EWSN is a professional grade Room Relative Humidity and Temperature Sensor designed for high accuracy monitoring in commercial BAS environments. Engineered for versatility, this unit features a selectable 0 10Vdc or 4 20mA output signal for both humidity and temperature, allowing for seamless integration with APOGEE controllers and other third party building automation systems. With a 2% RH accuracy rating