1. High Accuracy: This air compressor pressure switch has high accuracy voltage regulation and sensitive response. 2. Great Control: Equipped with on and off switch lever, the simple operation adds more convenience to the control. 3. Saving Energy: Works perfectly in saving the electric energy and improving the work efficiency as well, useful. 4. Practical Use: Allows for extensive application in private workshops and factories, very practical and reliable. 5. Easy to Install: Comes with a compact size and a light weight, the installation is very convenient to complete. Air Compressor Pressure Switch 1/4in 4 Holes Controller Regulator Valve 90-120PSI Item Type: Pressure Switch Switch Pressure Range 0.5-0.8MPA (5-8BAR) (90-120PSI) Exhaust Pipe: Approx. 6mm / 0.24in Contact Method: Normally Closed Connector Size: 12mm / 0.47in (approx.), 1/4 inch Outer Diameter of Pressure Relief Port: Approx. 9.5mm / 0.37in Maximum Current: 15A Working Pressure: 5-8KG Life: 80,000 times. Note:Please use according to the parameter voltage. Color: Black Material: ABS+Metal Package Contents: 1 * pressure switch 1 * pressure regulator 2 * external thread 2 * external thread valve 1 * switch control valve