Features ENERGY SAVING AND DURABLE: The air compressor pressure switch has high strength and long service life, which can save the electric energy of the air compressor EASY INSTALLATION AND DISASSEMBLY: The air compressor pressure switch has clear threads and no burrs on the surface, easy to disassemble and install SIMPLE TO ADJUST: The pressure switch control union ball valve is equipped with a barometer to set and read data. With valve knobs, you can adjust atmospheric pressure as needed to help save power IMPORTANT ACCESSORIES: Air compressor pressure switch is a very necessary component when installing or connecting air compressor or air hose, the main role of the valve is to adjust the stop and start pressure of the air compressor ACCURATE CONTROL: The air compressor pressure switch enable accurate air control for optimal results. Standard intake and outlet ports are suitable for almost any type Specification: Item Type: Air Compressor Pressure Switch Material: Brass, stainless steel, ABS Specification:  Switching Pressure Range: 0.5-0.8MPA(0~12BAR)(0~180PSI) Package List: 1 x Pressure Switch 1 x Union Ball Valve 2 x Gauge 2 x Connector Package List 1 x Pressure Switch 1 x Union Ball Valve 2 x Gauge 2 x Connector