MULTIFUNCTIONAL 5-IN-1 DIGITAL TIRE PRESSURE GAUGES / AUTO EMERGENCY RESCUE ESCAPE LIFE-SAVING TOOLS COME WITH TIRE PRESSURE GAUGE, SEAT BELT CUTTER, LED FLASHLIGHT, COMPASS, AND WINDOW PUNCH / SMASHER/ GLASS BREAKER. BATTERIES INSTALLED AND WORKING PRESSURE RANGE IS 2-150PSI. PREPARE THIS TOOL IN YOUR HOME, OFFICE, OR CAR. IT IS A GREAT ITEM TO KEEP YOU TRAVEL SAFETY AND HELP YOUR CUSTOMERS STAY SAFE ON THE ROAD. IDEAL FOR GAS STATION, OIL COMPANY, AUTOMOBILE SALES SERVICE SHOPS AND SO ON. 6 1/2" L X 2 7/10" W X 1" D