For technicians performing HVAC system diagnostics or repairs

The Antunes Controls 8021202056 (SMD Series) is a high-precision air differential pressure switch engineered for critical proving applications in HVAC and energy management systems

When the rear housing is rotated to fit a manifold

What power source does this unit require

Antunes Controls 804112106 Pressure Switch Els PW 29614 For technicians performing HVAC systemThe Antunes Controls 804112106 (Model RHLGP A) is a high performance dual gas pressure switch designed for critical monitoring in industrial and commercial combustion systems. Engineered for precision, this double gas pressure switch features an adjustable High range of 10 50" WC and a Low range of 2 14" WC, ensuring comprehensive protection against overpressure and underpressure conditions. This automatic reset pressure switch utilizes two