Car TPMS Tyre Preure Monitoring System Solar Power Digital LCD Display Auto Security Alarm Systems Preure External SensorSolar TPMS Features: Solar power charging, don't need to charge by connecting car cigarette lighter At the same time, USB charging is also convenient and practical Colorful LCD digital displaying, clear to show tire information Wirele connect by external sensors, easy install Built-in vibration sensor, the car automatically turns on when starting, and automatically turns off when the car stops Solar TPMS Function: Rear-time monitoring preure & temperature of 4 tires Low air preure /High tire preure alarm High temperature / Leakage / Low Battery Alarm Solar TPMS Specifications: Material: ABS + Metal External sensor working temperature: -20-60 Solar TPMS Package included: 1 Set Car Tyre Preure Monitoring System Note: The host must be turned on before installing the sensor. Pre and hold the left button for 3 seconds For the first time, it is recommended to charge with USB for 1 hour To All Buyers If you have any problems when you get parcel,please feel free to contact me,we'll be only too glad to aist you,have a good day.