Feature: 1. For Pressure Control: Able to withstand a high pressure up to 1.0Mpa, the pressure switch enables better pressure control for stable working. 2. Easy Adjusting: Use the hex wrench for pressure regulation. Rotate CW to increase the pressure and CCW to decrease the pressure. 3. Good Protection: The external insulating sheath cover of the line makes the pressure switch safer, which also improve the work safety. 4. Great Material: Using premium stainless steel and rubber materials, the diaphragm type pneumatic pressure switch is durable. 5. Firm Connection: Comes with 1/2in thread, the pressure regulator ensures easy installation and firm connection without leakage. Specification: Item Type: Pneumatic Pressure Switch Material: Stainless steel, rubber. Thread Size: 1/2in Maximum Pulses: 200 cycles per min. Operating Medium: Compressed Air, Water Guarantee Level with Sheath: Ip54 Environment and Medium Temperature: -5 - 60 ℃ Maximum Pressure Resistance: 1.0Mpa Rated Current: 500mA Rated Power: 250W Mechanical Life: 100,000 Cycles Working Pressure: Adjustable Rated Voltage: ≤ AC220V, AC110V, DC24V, DC12V Pressure Range: 0.1-1Mpa. Package List: 1 x Pneumatic Pressure Switch Note: NC is a normally closed pressure switch. The default factory state is that the contact is open, and it is closed when the pressure rises to the set value, giving a signal.