The ultimate tool for the professional technician, as well as anyone who demands the highest quality tools for their shop. Set your desired pressure and this state-of-the-art inflator/deflator does the rest! SPEED: Pick your desired tire pressure or use the two presets for your most common pressures. Engage the LockNFlate Air Chuck and let the inflator work without holding anything in place. The inflator gives a loud beep when it's done so you know when to set down your cup of coffee and return to the tire. SAFETY: The included LockNFlate Air Chuck locks on and stays in place. Combined with the 68" long hose, stand safely back from the tire and let the tools do the work. ACCURACY: ±1 PSI (±0.08 BAR)