Type: Intelligent Solar TPMS Car Tire PreureSuper Larger Screen TPMS -Solar charging, don't need to connect car cigarette lighter to charge-Color LCD digital display for clear display of tire information-Monitor the preure and temperature of 4 tires in real time-Low air preure/high temperature alarm-High Temperature / Leakage / Low Battery Alarm-Intelligent Shock Boot when car moving, don't need to turn on/off-Wirele connect with sensors, easy install,attached to gla-Internal sensors and external sensors options, meet all your needs-Two units (PSI / Bar) changeable, you can set the one you like. As clear as day and nightThe receiver can display the time and monitor the tire preure and temperature in real time! Solar charging + USB chargingNew energy solar charging provides working power. High power transmiion and performance.TWO charging ways which ensure the tire preure monitoring system will work continuously.Do not occupy the car cigarette lighter socket. High Quality Solar Panel External sensor:- Battery: built-in CR1632 button cell- Working voltage: 2.0 - 3.6V- Working environment: -40 - 125 Deg.C- Working preure: 0 - 50 psi- Preure accuracy: plus or minus 1.5 psi- Waterproof grade: IP67- Transmiion frequency: 433.92MHz Internal Sensor ( Option )1. Please install in by Profeional car center2.More stable and accurate3.IP67 Protection / Waterproof4.Anti High Temperate and Cold5.Working Temperature: -40-1256.Battery Life: 5 Years