Specifications and functions：
-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
-Internal sensors and external sensors options, meets all your need
-Advanced chip sensors and fit on almost 98% cars on market

Internal Sensor (Optional)：
-Please install in by Professional car center
-More stable and accurate
-Anti High Temperate and Cold
-IP67 Protection / Waterproof
-Working Temperature: -40℃-125℃
-Battery Life: 5 Years

External Sensor (Optional)：
-Easy to install, convenient to replace
-Dust-Proof / Water-Proof / Anti-theft
-Anti High Temperate and Cold
-IP67 Protection / Waterproof
-Working Temperature: -20℃-80℃

-Battery Life: 2 Years, replaceable, service life of external sensors ≥Other products * 2 

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.

External Sensor Set include:
1 x Stonego Tire Pressure Alarm Monitor
4 x External Sensor
1 x Fixed Sticker
1 x Instructions
4 x Screw Nut
1 x Wrench
1 x USB power Cable

Internal Sensor Set include:
1 x Stonego Tire Pressure Alarm Monitor
4 x Internal Sensor
1 x Instructions
1 x Fixed Sticker
1 x USB power Cable