TWO PCS Air Pressure Switch Tank Mount Thread 1/4"" NPT 12V/24V 165-200PSI For Train Horn
You will received 2 Piece 165-200psi Air Compressor Pressure Switch as photo shows

Specification:
1/4-18 NPT Male Thread
Tank Mount Type
Pressure Range 165-200 PSI
AC 110V / 120V / 240V or DC 12V / 24V (Maximum Current Supported: 20Amp)
Air Pressure Switch Automatically Turn On Air Compressor @ 165 PSI ; Turn Off Air Compressor @ 200 PSI (Tolerance: +/- 5%)

Fitment:
Suitable for 12V or 24V Applications
Ideal for Air Horns, Train Horns,Marine Horns, Air Compressors, Oil Tank Pressure Switches Air Ride Suspension Applications etc.

【Size】1/4-18 NPT Male Thread ; Tank Mount Type
【Package Included】: TWO PCS Air Compressor Pressure Switch FOR 165-200psi
【Working Condition】: AC 110V / 120V / 240V or DC 12V / 24V (Maximum Current Supported: 20Amp)
【Pressure Range 165-200 PSI】Air Pressure Switch Automatically Turn On Air Compressor @ 165 PSI ; Turn Off Air Compressor @ 200 PSI (Tolerance: +/- 5%)
【Versatile Use】: Suitable for ALL 12V or 24V Applications, Ideal for Air Horns, Train Horns,Marine Horns, Air Compressors, Oil Tank Pressure Switches Air Ride Suspension Applications etc.