Specifications and functions -Solar power charging, dont need to charge by connecting car cigarette charger -Colorful LCD Digital displaying, clear to show tire information -Rear-time monitoring pressure and temperature of 4 or 6 tires -Low air pressure or high temperature alarm -High Temperature or Leakage or Low Battery Alarm -Intelligent Shock Boot when car moving, dont need to turn on or off -Wireless connect by sensors, easy install -Build-in sensors and external sensors options, meets all your need -Freescale chip sensors and fit on almost 98 percent cars on market External Sensor -Easy to install, convenient to replace -Dust-Proof or Water-Proof or Anti-theft -Anti High Temperate and Cold -IP67 Protection or Waterproof -Working Temperature: -20℃-80℃ -Battery Life: 2 Years, replaceable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.