Description The main function is to adjust the closing and starting pressure of the air compressor; the user can adjust it according to the actual situation. The right red is the safety valves. The air regulators on both sides of the copper are exhaust ports that open the gas when in use. Features - Color:Black. - Material:Plastic.- Size:12.50X8.00X5.00cm/ 4.91X3.14X1.97in.- Rated voltage: 220/380V.- Exhaust pipe: 6MM.- Contacts method: normally closed.- Connector size: inch 1/4, 2 points female thread, about 12MM.- Outer diameter of pressure relief port: 9.5MM.- Maximum current: 20A.- Working pressure: 5-8KG (90-125PSI) .- Made of safe plastic when the press switches on and off, it is durable and practical. - Plastic European style quick connector, quick installation to meet different work needs. - Safety release device made of pure copper for safety. Metal shell pressure gauge, not easy to break. - The pressure of this press switch is adjustable to meet different pressure requirements. - Very suitable for replacing Bama air compressor accessories, it is a good accessory for you to replace the press switch. Packing list: 1 x Smart Valves Controller