70-100 PSI Car Horn Air Pressure Switch Tank Mount Thread 1/4" NPT 12V/24V Features: Turn On Air Compressor 70 PSI ; Turn Off Air Compressor 100 PSI. Convenient to use. High Accuracy. Great for Train Horn Air Compressors Specifications: Color:Black Material:Metal,Plastic Thread: 1/4" NPT Current: 16A Pressure: 70-100 PSI Minimum Voltage: 12V Maximum Voltage: 24V Package Include: 1x Car Horn Air Pressure Switch Tank Mount Thread