less External Sensors TPMS ( )Type: Intelligent Solar TPMS Car Tire Pressure-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 pressure & temperature of 4 tires-Low air pressure/high temperature alarm-High Temperature / Leakage / Low Battery Alarm-Intelligent Shock Boot when car moving, don't 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 marketSpecification:Solar power chargingLCD displayingAdhere to windscreen for installationOperating frequency: 43392Mhz 50KHzOperating voltage: 37-5 VWorking temperature: -20 -75 Pressure Range: 05 - 35 Bar