1. High polymer lithium power supply, fast charging, long-lasting power, 2 external sensors. 2. Real-time highly accurate tire temperature and pressure, with 2 rounds of data displayed at the same time. 3. Fuel saving, predict air leakage, extend tire life, balance tire pressure, ensure driving safety. 4. PSI, BAR two pressure unit selection, ℃ and ℉ two temperature unit selection. 5. Each sensor has an independent ID code, tire position can be interchanged. 6. The sensor has waterproof function, waterproof grade: IP5K4K. 7. Korea certified wireless radio frequency technology, effective transmission distance of more than 80 meters, sensor   Real-time update data, instant alarm when tire pressure and temperature are abnormal. 8. Imported Freescale chip and Swiss high-temperature explosion-proof battery   Over time, the monitoring data is more accurate, ensuring life safety. Specification: Air pressure setting range: 0.1~6.0BA. Temperature setting range: 60℃~110℃. Working temperature: -20℃~80℃. Storage temperature: -30℃~85℃. Power voltage: DC 5V. Frequency: 433.92MHz±20.00MHZ Package Included: 1 X Set of Tire Pressure Monitor