The Ascot Supply Master Air Gauge Checking Station is equipped with a regulator and filter for proper air and water filtration. The station reads from 0- 200 psi and is CARB certified. It is specially designed to allow users to quickly and accurately check air gauges and inflator gauges and can be mounted to a bench or a wall. It has three checking points: the standard valve port, large bore valve port, and female coupler port. The back-lit readout provides the user with a clear reading.