EXELAIR by Milton (EX99900) Digital Tire Pressure Gauge DIGITAL TIRE PRESSURE GAUGE: Measures in PSI (5-100), kPa, kg/cm2, and Bar readings. LED LIGHT TIP: Better visibility and easier access to tire valves in low-light conditions. PORTABLE: Compact size, will fit right into palm of hand. CAR SAFETY/MAINTENANCE: Optimal auto emergency roadside assistance tool for your car. These make great gifts for those you care about. AUTOMATIC SHUT-OFF: Features an auto shut-off to save battery life. Batteries included.