Drive with greater safety, maximize tire life, conserve gas, save money and help protect the environment. When it comes to safety, saving money and protecting the environment, keeping your tires properly inflated is an easy way to make a huge impact. That's why every vehicle owner should have this Tornado Tools pistol grip tire gauge. It instantly connects to your tire to check tire pressure then connects to your compressor to obtain the pressure needed. It measures from 0-300 PSI and displays pressure on the LCD display. Also features 4 pressure unit conversions, aluminum alloy housing, black rubber hose, tire inflating needle, 1/4" male connector and auto shut off.