ITEM NAME:Quality Air Compressor Pressure Switch Control 90-120 PSI 12V 3.5A Description: This pressure switch is designed for high-pressure on-board air systems. Preset to turn on the compressor when tank pressure is below 90 psi, and turn off the compressor when the air tank pressure reached 120 psi,with a tolerance of  ± 10%. For 12 volt power source. With 1/8inch male pipe thread,and 1/4inch push-on electric terminals. For Air Horns,Train Horns,Air Suspension Compressors,etc. Specification: Material: Metal Volt: 12V Electric current: 3.5A Rated: 90PSI~120PSI Color: Like the picture show Package Includes: 1 Piece Horn Compressor Air Pressure Switch Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making.1 Piece Horn Compressor Air Pressure Switch. This pressure switch is designed for high-pressure on-board air systems. For Air Horns,Train Horns,Air Suspension Compressors,etc. Due to the difference between different monitors, the picture may not reflect the actual color of the item.