Markwort Volcano Air Erupt Inflator-Heavy Duty Description: Inflates 1 tire in 1.5 minutes! Includes pressure gauge. Operates on AC 120V. Security switch automatically cuts off if the motor overloads or overheats and resets when the motor cools. All parts are lifetimelubricated, no oiling is necessary. Ideal for buses, trucks, 4x4's, vans, RVs, ATVs and cars. Additional nozzles included for use with other inflatables such as sports balls, air mats and more. • Heavy Duty • 120V