Description: This is great switch for miniature compressor to control the pressure and can help to save electric energy. It is durable and sturdy, easy to install and disassembly. Features: Heavy duty plastic and metal construction product is sturdy and durable in use. Easy to install and disassembly. Mainly used to adjust the starting pressure and closing pressure of air compressor. When pressure is lower than 90 PSI, turn on the compressor; pressure over 120 PSI, turn off the compressor. Double gauges shows current pressure value clearly. Specifications: Condition: 100% Brand New Material: Metal + Plastic Color: as Shown in the Picture Type: 2 phase, 1 port Max. Voltage: 230V Max. Current: 16amp Pressure Range: 90-120 PSI (Pressure lower than 90 PSI, turn on the compressor. Pressure over 120 PSI, turn off the compressor. Not Adjustable.) Gauges Pressure: 0-180 PSI Valve Size: approx. 15.7 x 8.5 x 8cm / 6.2 x 3.3 x 3.1in Air Conditioner Size: approx. 5 x 8 x 12.7cm / 1.97 x 3.15 x 5in Valve Diameter: approx. 40mm / 1.57in Weight: approx. 608g Package Included: 1 x Pressure Switch Valve 1 x Air Conditioner 2 x Pressure Gauges Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.