Introduction of the key: ▶ ① Right Select Key: Select key of menu M ② Menu Key: Long press into menu setting ◀ ③ Left Select Key: Long press to turn on/off, Select key of menu Features: - 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 - Two units (PSI / Bar) changeable, you can set the one you like. External Sensor: - Easy to install, convenient to replace - Dust-Proof / Water-Proof / Anti-theft - Anti High Temperate and Cold - IP67 Protection / Waterproof - Working Temperature: -20℃-85℃...