air compressor switch, or pressure switch, is a key component of an air compressor system that regulates the compressor motor's operation based on pressure levels in the air tank. It helps maintain the desired pressure levels, ensures safe operation, and contributes to the efficiency of the compressor system. Size: | 1/4-18 NPT Male Thread | Tank Mount Type | Package Included: | 1 X Horn Compressor Air Pressure Switch | Working Condition: | AC 110V / 120V / 240V or DC 12V / 24V (Maximum Current Supported: 20Amp) | Turn On Air Compressor @ 120 PSI ; Turn Off Air Compressor @ 150 PSI (Tolerance: +/- 5%) | Versatile Use: | Fits 12V or 24V Applications; | Ideal for Air Horns, Train Horns, Air Compressors, Oil Tank Pressure Switches etc. |