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: 1/2in 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 Rated Voltage: Less than or equal to (AC220V, AC110V, DC24V, DC12V) 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. How To Use 01. Cut off the top of insulation sleeve. 02. Internal wiring mode. 03. Install the completed sheath.