Solar-powered :No need for batteries or charging, the TPMS is powered by solar energy, making it eco-friendly and cost-effective. 360-degree adjustable temperature warning :The TPMS provides a warning when the temperature of the tires goes beyond a certain range, ensuring that you always have the right preure for the weather. Auto security system :The TPMS sends an alert to your phone when the preure or temperature of your tires goes beyond a certain range, ensuring that your car is always secure. Adjustable preure warning :The TPMS sends a warning when the preure of your tires goes beyond a certain range, ensuring that you always have the right preure for optimal performance. Product description Features: -Solar charging, don't need to connect car cigarette lighter to charge -Color LCD digital display for clear display of tire information -Monitor the preure and temperature of 4 tires in real time -Low air preure/high temperature alarm -High Temperature / Leakage / Low Battery Alarm -Intelligent Shock Boot when car moving, don't need to turn on/off -Wirele connect with sensors, easy install,attached to gla -Internal sensors and external sensors options, meet all your need - Two units (PSI / Bar) changeable, you can set the one you like. -Intelligent On and Off - 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. Specification: External Sensor ( Option ) - Easy to install, convenient to replace -Dust-Proof / Water-Proof / Anti-theft -Anti High Temperate and Cold -IP67 protection/waterproof -Working Temperature: -20-85 -Battery Life: 2 Years, replaceable Build-in Sensor ( Option ) - 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 Year Package included: External Sensor ( Option ) Build-in Sensor ( Option ) Two units (PSI / Bar) changeable, you can set the one you like. Notice *Thepictureisforreferenceonly,theactualdesignoftheproductmayvary. *Duetothelightandscreensettingdifference,theitem'scolormaybeslightlydifferentfromthepictures. *Pleaseallowslightdimensiondifferenceduetodifferentmanualmeasurement.