E-ACE Solar Power TPMS Car Tire Pressure Alarm Monitor System Auto Security Alarm Systems Tyre Pressure Temperature Warning 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 pressure & temperature of 4 tires -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 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 Professional car center -More stable and accurate -Anti High Temperate and Cold -IP67 Protection / Waterproof -Working Temperature: -40-125 -Battery Life: 5 Years 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 , 2 backup batteries 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. Press and hold on the power button to turn on monitor 2. WInstall External or Built-in sensors one by one Main Features Why choose E-ACE TPMS ? E-ACE is the top brand and gold seller in