Product Show: Package Includes: 1 x Male Thread 1 x Male Thread Valve 2 x Pressure Gauges 1 x Air Compressor Pressure Switch Control Valve Specifications: Pressure: 7.25-125 PSI AMP RATING: 15A Max Voltage: 240V Thread: 1/4 inch, 1/8 inch NPT Dimensions: 8 x 5 x 13.8 cm / 3.15 x 2.0 x 5.4 inches Features: Helps save electricity on air compressor High precision voltage regulation and sensitive reaction With ON/OFF control lever Easy to install and easy to use Notice: 1. For safety reasons, please make sure the AMP rating of your electric motors is less than the maximum AMP current of the pressure switch 2. When installing the pressure gauge, there should be 3-4 wires Aluminum with easy aluminum skein, over tightening will not crack, and the pressure gauge and bracket will be broken, damaged, scrapped p>