Please Note :The pressure cannot be adjusted manually, only the pressure can be adjusted automatically Specification: Compressor Pressure Switch: Brand new Type: 2 phase, 1 port Material: Metal, Plastic Size: as shown in picture Max Voltage: 230V Max Current: 16amp Max Pressure: 125psi, 12bar Press Gauges: Material: Metal, Plastic Diameter: approx. 42mm Feature: Used in personal workshops and factories. Fine workmanship. Easy to use. Long service life. Package included: 1 x Compressor Pressure Switch 2 x Press Gauges (Can't regular) Note: Please allow 0-1cm size errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.