Features:Type: Intelligent Solar TPMS Car Tire PressureSolar power charging, donfor t need to charge by connecting car cigarette Colorful LCD Digital displaying, clear to show tire informationRear-time monitoring pressure & temperature of 4 tiresLow air pressure/high temperature alarmHigh Temperature / Leakage / Low AlarmIntelligent Shock Boot when car moving, donfor t need to turn on/offWireless connect by sensors, easy installTwo units (PSI / Bar) changeable, you can set the one you like. Specifications:Working Temperature: -20-85 Life: 2 Years, replaceableQuantity:1PcNote:1.Transition: 1cm=10mm=0.39inch2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: (Without retail package)1 x Car Tyre Pressure Monitoring System