This digital tire gauge produced the most accurate readings, earning it The Best rating from the Hammacher Schlemmer Institute. Analysts tested each gauge at three different pressures and compared the results to those taken with a professional mechanic’s tool, and while lesser models were off by almost 1 PSI, The Best Digital Tire Gauge’s results were nearly perfect. It was the only model with an integrated flashlight, which facilitated connection to a tire’s valves, and for easy nighttime use the gauge beeps when a reading is complete and displays results on a backlit screen for 20 seconds after removal. The Best Digital Tire Gauge weathered sub-freezing temperatures and was the only unit to survive being dropped on a concrete floor. It reads from 5 to 99 PSI, stores the recommended pressures for the front and rear wheels on two vehicles, and compares them to current pressure levels. Includes two CR2032 lithium batteries. 6" H x 2 1/2" W x 3/4" D. (2 oz.)