Specifications and functions -Solar power charging, dont need to charge by connecting car cigarette lighter-Colorful LCD Digital displaying, clear to show tire information-Rear-time monitoring preure & temperature of 4 tires-Low air preure/high temperature alarm-High Temperature / Leakage / Low Battery Alarm-Intelligent Shock Boot when car moving, dont need to turn on/off-Wirele connect by sensors, easy install-Build-in sensors and external sensors options, meets all your need-Freescale chip sensors and fit on almost 98% cars on market Build-in Sensor ( Optional ) -Please install in by Profeional car center-More stable and accurate-Anti High Temperate and Cold-IP67 Protection / Waterproof-Working Temperature: -40-125-Battery Life: 5 Years, not replaceable External Sensor (Optional) -Easy to install, convenient to replace-Dust-Proof / Water-Proof / Anti-theft-Anti High Temperate and Cold-IP67 Protection / Waterproof-Working Temperature: -20-80-Battery Life: 2 Years, replaceable Please turn on monitor before install sensors 1.Pre and hold on the poewer button to turn on monitor; 2.Install external sensors one by one. How to replace the External Sensor battery? 1. Remove the dismantling gasket2. Wrench the shell with a wrench3. Remove the battery4. Replace a new battery. Main Feature Why choose Acceo TPMS ? Acceo is the top brand and gold seller in