Demonstration of the Ezyflate by 4wd Evolution https://www.4wdevo.com.au/product/twi... The twin hose portable Automatic Tyre Inflator and Deflator "It's like having your own personal servo pump travel with you!" Automatically adjust pressures in two tyres simultaneously by simply selecting your desired pressure and the device does the rest for you! Featuring two programmable buttons that allow you to save your 2 most frequently used pressures (eg, 18psi and 38psi) Once you connect the Ezyflate to your air compressor you simply select your desired pressure, connect the 2 hoses to your tyres and the unit will automatically begin inflating or deflating the tyres until your selected pressure has been reached, the device will then stop and begin beeping to notify you it is done. "No more crouching down on the ground next to your noisy engine or the hot road to inflate or deflate your tyres, hook it up and walk away until it's done! Brilliant!" Key features: Automatic digital operation 2 Programmable preset buttons Inflate or deflate 1 or 2 tyres Equalise pressure between tyres Unique and durable double locking clip-on chuck design make it quick and easy to attach the hoses to your tyre valves Rechargeable battery Inflation Range: 7-174psi (0.5-12bar/1200kpa/174psi/ 12kg/cm2) Best used with air compressors that feature a pressure switch (what is a pressure switch? Most quality 12v air compressors feature a pressure switch that will shut the compressor off when not in use, as the Ezyflate operates independent of your compressor when the device has finished inflating your tyres it will shut off which will mean the compressor no longer needs to run, Compressors with pressure switches will then turn them selves off) If you are unsure weather or not your air compressor features a pressure switch feel free to contact us and we will help to identify it for you. https://www.4wdevo.com.au/product/twi...