Monkey Grip 17055-MG Speed Drive Max Tire Inflator incorporates a digital pressure gauge with auto shut-off and a patent pending countdown timer. This SmartStop technology can be programmed to auto shut-off at the desired tire pressure which also estimates and displays the remaining fill time. This unit provides the knowledge to keep you safe. It includes a lighted gauge display and 3 super-bright LED work light making this inflator great for nighttime use. The nylon storage bag is included. It fills a standard 195/65R15 tire size in just 3 minutes..