Usage Tips: Equipped with a 6.3mm unloader valve and a 1/4 inch NPT female connection, this pressure switch is factory-set with a pressure range of 95-125 PSI. It includes a relief valve to prevent overload. Universal Part Compatibility: Designed for both single-stage and two-stage air compressors, this pressure switch supports operations up to 125 PSI. Enhanced Flexibility: The four-port manifold design allows for versatile installation options and the addition of a relief valve, gauge, or multiple air outlets, improving the functionality of your air compressor. User-Friendly Design: Features a built-in On/Off metal lever and an easily accessible side unloader for simplified operation. The 4-port base allows for straightforward mounting of exhaust valves and pressure gauges. Safety and Reliability: Activates the compressor at 95 psi and deactivates at 125 psi, ensuring consistent, safe, and reliable performance. Includes automatic cut-off to help prevent equipment damage. Color: Black Material: Plastic + Metal Note: The actual product may have slight color variations due to lighting and display differences, which do not affect functionality. Package Contents: 1 x Pressure Switch Note: Other items not included. Note: Slight color differences may occur due to lighting and screen settings. Measurement error allowed is +/- 1-3 cm.