Features FREE CONTROL: This pressure switch is equipped with a valve knob, allowing you to regulate the pressure as need, helping to better save energy. WITH GAUGE: The pressure control switch comes with 2 gauges, making the setting more convenient and data reading clearer. HIGH PRECISE: This pressure control valve is used to regulate the stop and start pressure of the air compressor, could achieve accurate control for optimal results. CLEAR THREADS: The threads of the connector are clear without burrs, making the installation and disassembly easier. STANDARD PORT: This air compressor pressure switch with standard inlet and outlet ports is suitable for almost any type devices. Specification: Item Type: Air Compressor Pressure Switch Material: Zinc Alloy, Stainless Steel, ABS Specifications: Switch Pressure Range: 0-180PSI (0-12BAR) (0.5-0.8MPA) Package List: 2 x Quick Connector 2 x Gauge 1 x Switch 1 x Valve Package List 2 x Quick Connector 2 x Gauge 1 x Switch 1 x Valve