Brand N/A Model STL-04-1 Quantity 1 piece(s) Color Black Type Tire Pressure Gauge Function Measure tire pressure Pressure Range 0.1~9 bar Accuracy 98% Pressure Unit bar Power Supply 1 x CR1225 (included) Other Features Voltage: 12~24V; Applies in all vehicles except heavy trucks or heavy buses; Every tire displaying time is about 3s the sensor will display first and alarm with beeps when there are abnormal situation (high voltage low voltage high temperature and low battery); Easy installation: Installed the sensors onto the valve of car tire. Packing List 1 x Car tire pressure gauge 4 x Sensors (Every one is built-in 1 x CR1225 battery) 2 x Wrenches 2 x Backup CR1225 batteries 1 x Sealed ring 1 x English user manual User Manual: http://m5.img.dxcdn.com/CDDriver/CD/sku.251611.rar