The AAA Digital Pressure Gauge comes backed by the best known name in the automotive industry. AAA. Unlike off the shelf pressure gauges. you know you are getting only the finest with AAA. This pressure gauge features an easy to read digital display with LED backlight and LED lit nozzle for visibility in dimly lit areas. This gauge reads pressure from 0 to 100 PSI with tire sensor safe. Or use the button to toggle between 4 measurement ranges. Gauge will auto shut off after 30 seconds. or press and hold the button for 3 seconds to turn off to save battery life. Compact size makes it perfect to throw in your glove box or tool box. Use with your car. truck. RV. Motorcycle and more.