







The pressure switch is the component that is responsible for turning on and off the air compressor automatically, the most important part of a train horn kit. It is weather-resistant, comes with a built-in relay.
The screw thread design makes it easy to install.
The Air Gauge is used to monitor the air pressure in the tank. Having an Air Gauge is highly important for diagnosing issues with the onboard air system. Simply having an Air Gauge installed could save you time and money by knowing exactly what issue you are having instead of having to guess.
The Safety Blow-Off valve is outfitted in case of emergencies. The Safety Blow-Off is rated for a pressure that is a little bit higher than your Pressure Switch.