Feature: By using the advanced 6-in-1 wireless sensors that highly integrated pressure and temperature sensor we offer the top of the line and reliable TPMS for you. The intuitive monitor and smart buzzer secure a safer driving experience for you. Real-time detection of tire pressure/temperature, battery power, leakage / low battery alarm. Instant audio alarm of abnormal pressure or temperature. Wireless connect by sensors, easy installation. Solar power charging. Built-in high capacity rechargeable battery LCD display screen, Simple user interface. Sleep mode available. Specifications: Solar Receiver: Input Voltage: 4.5 V~6V（USB） Sleep current: ＜70uA    Receiving sensitivity: ＜-105 dbm Working Temperature: -30℃ ～ 80℃ Working Frequency: 433.92 MHz±30KHZ External Sensor: Battery Model: CR1632(140mAh) Standby current: ﹤0.7uA Transmission current: ﹤10mA Working frequency: 433.92 MHz±30KHZ Air pressure measurement range: 0~8Bar/0-116Psi Temperature measurement range: -30℃~60℃ Air pressure measurement error: ±0.1Bar (25℃) Temperature measurement error: ±3℃ Operating temperature: -30℃~60℃ Battery Life: More than 1 year(battery can be replaced) Package size: 16*14*6cm Packge weight: 280g Pakage list: 1 set Solar Charging Tyre Pressure Monitoring System