Product Description E-ACE Solar Power TPMS Car Tire Preure Alarm Monitor System Auto Security Alarm Systems Tyre Preure Temperature Warning Specifications and functions:-Solar power charging, don't 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, don't 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 marketBuild-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 YearsExternal 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,Free 2 backup batteries, service life of external sensors Other products * 2 How to replace the External Sensor battery? 1. Remove the dismantling gasket; 2. Wrench the shell with a wrench; 3. Remove the battery; 4. Replace a new battery. Please turn on monitor before install sensor 1. Pre and hold on the power button to turn on monitor2. Install External or Built-in sensors one by oneIntelligent Solar TPMS Car Tire PreureSolar Charging + USB Charging Accurate early warning, safer driving, more reauring. Intelligent On and Off When the car is started, the vibration of the machine is automatically opened and the machine is shut down automatically when it is still, without manual operation.External SensorsBuilt-in SensorSuitable for many kinds of carsSuitable for Cars, ORV, SUV, MPV, Minibus, Wagon, etc