Specifications: Type: 170-200PSI Pressure Switch Package Size(inch):2.1*1.1*1 Thread: 1/4 NPT Working Voltage:12 Volt Pressure Switch Setting:170-200 PSI Color:Black Description: This highly accurate tank-mount pressure switch regulates the air pressure in your air tank. The threaded side is ¼" NPT Male. The pressure switch gets wired to the compressor and will automatically turn it on when the tank's pressure is below 170 PSI and turn it off when pressure reaches 200 PSI. Rated for 12V vehicles, it is the perfect solution for air horn systems and air suspension applications. .
eBay