Dynamically monitor tire pressure, increase traffic safety.USB Out charging 5.1V 1A fast phone chargeColorful LCD Digital displaying, clear to show tire informationRear-time monitoring pressure & temperature of 4 tiresLow air pressure/high temperature alarmTips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use.High Temperature/Leakage/Low Battery AlarmIntelligent Shock Boot when car moving, don't need to turn on/offWireless connect by sensors, easy installFreescale chip sensors and fit on almost 98% cars on marketMore stable and accurateAnti High Temperate and ColdIP67 Protection/WaterproofBattery Life:2 Years, replaceableWorking Temperature:-20-80Easy to install, convenient to replaceType:External SensorColour:BlackMaterial:PlasticPackage Contents:1 x Tire Pressure Monitoring System4 x SensorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.