Motor Vehicle Sensors Type:Intelligent Solar TPMS Car Tire Pressure 2021 New Super Larger Screen TPMS -Solar charging, dont need to connect car cigarette lighter to charge -Color LCD digital display for clear display of tire information -Monitor the pressure and temperature of 4 tires in real time -Low air pressure/high temperature alarm -High Temperature / Leakage / Low Battery Alarm -Intelligent Shock Boot when car moving, dont need to turn on/off -Wireless connect with sensors, easy install, attached to glass -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 night The receivercan display the timeand monitor the tire pressure and temperature in real time! Solar charging + USB charging New energy solar charging provides working power. High power transmission and performance. TWO charging ways which ensure the tire pressure 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 pressure: 0 - 50 psi - Pressure accuracy: plus or minus 1.5 psi - Waterproof grade: IP67 - Transmission frequency: 433.92MHz Internal Sensor ( Option ) 1. Please install in by Professional car center 2.More stable and accurate 3.IP67 Protection / Waterproof 4.Anti High Temperate and Cold 5.Working Temperature: -40-125 6.Battery Life: 5 Years FAQ Warm and important tips: 1. Why dont you reply to my message? Office hours: 9:00 to 19:00 Chinese time Saturday and Sunday rest days. Most likely, we didnt answer you because you wrote to us at rest. Please wait a moment, once the expert sees your message, he will answer your question immediately! 2. Why is there a bad evaluation of your product? To be honest, most customers are satisfied with our products. However, despite this, We cannot guarantee a 100% lack of human factors (It happens rarely). Because we sent the parcel from China, the delivery time was longer than the buyer expected. Some people are not satisfied with the speed of service support (see point 2). Problems can also arise when installing or using, and buyers will immediately write down negative comments. Although if he writes to us, the problem will be solved. Of course, we strive to improve the quality of our services and improve our products. In any case, dont worry.