Yanace Car TPMS Tire Preure Monitoring System Auto Display Alarm Monitoring USB Charging Temperature Alert With 4-6 Sensors 8Bar Specifications and functions -Just plug it into the car's cigarette lighter, drive the car, and it will open automatically.In addition, it has a USB charging port on the outside, which can charge your USB devices, such as mobile phones and tablets -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 -Wirele connect by sensors, easy install -Build-in sensors and external sensors options, meets all your need -Fit on almost 98% cars on market Build-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 Years External Sensors(Optional) -Easy to install, convenient to replace -Dust-Proof / Water-Proof / Anti-theft -Anti High Temperate and Cold -IP67 Protection / Waterproof -Working Temperature: -10-85 -Battery Life: 2 Years, replaceable Please turn on monitor before install sensors 1.Pre and hold on the poewer button to turn on monitor; 2.Install external sensors one by one. 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. Main Features Most traffic accidents are caused by tires, and it is neceary to install TPMS. Suitable for Cars, Mixer, Truck, SUV,Special model, etc.Internal and external sensor options. The use of sensors will not be affected by any complex road conditions 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 Sensors