Kangnice Car Truck Motorcycle Tire LCD Air Pressure Gauge Digital Meter Vehicle Tester The gas nozzle core is durable and will not get rusty for being made of copper. It is easy to use with one key to turn on or off.Besides,it can be switched between four modes It is easy to operate for the design is user friendly with the valve.The super accuracy LED display screen makes the measured data more accurate. The rubber shock-resistant protective cover can effectively protect the digital pressure gauge and guarantee that it can be used for long time. Size:12.1cm x 6cm / 4.72" x 2.36",4 units available: PSI, BAR, KPA, KGF/CM,Power supply: 2x Built-in CR2032.