PT 1/4in Pneumatic Adjustable Diaphragm Type Pressure Control Switch Stainless Steel Rubber Pressure Switch for Pump Pneumatic Adjustable Diaphragm Type Pressure Switch Stainless Steel Rubber Pressure Switch for Pump Feature: 1. Insulation Cover: This pressure switch features safer circuit with an external insulating sheath cover. You can choose it with confidence! 2. Stainless Steel, Rubber Material: Made of premium stainless steel, rubber material, this pressure switch is strong and durable, which ensures a long life span. 3. Easy Using: You can adjust the pressure freely with the help of a hex wrench(not included), turn clockwise to increase pressure and counterclockwise to decrease pressure. 4. Easy to Install: Comes with a compact size and a light weight as well, the easy installation can be quickly completed. 5. Easy Carrying: Comes with a small size, lightweight as well, this pressure control is easy for you to carry around to help with your work. Specification: Item Type: Diaphragm Type Pressure Switch Material: Stainless Steel, Rubber Thread Size: 1/4in Maximum Number of Pulses: 200 cycles/min Operating Medium: Compressed air, water Guarantee Level (with sheath): Ip54 Environment and Medium Temperature: - 5 to 60 Maximum Pressure Resistance: 1.0Mpa Rated Current: 500mA Rated Power: 250W Mechanical Life: 1 million weeks Working Pressure: Adjustable Pressure Range: 0.1 to 1Mpa Package List: 1 x Diaphragm Type Pressure Switch Note: "NO" is a normally open pressure switch, which is closed when the contact breaking pressure rises to the set value in the initial factory state. _x000D_