Features 1、Solar Charge+USB Charge --- Adopt high grade High quality solar battery panel our tire pressure monitoring system is automatic solar charging, you can freely use it in sunny day; Drivers don/u0027t have to worry about the continuity of product work often. And you can also use USB cable charge the TPMS at night and rainy day. 2、6 Alarm Functions --- This solar tire pressure monitoring system with 6-alarm mode (high pressure, low pressure, high temperature, rapid air leakage, low battery, signal lost ), promptly reporting with sound and flash for the abnormal tire condition. Ensure a safety driving. 3、Real-Time Simultaneously Display --- Real-time monitoring the temperature and pressure with high degree accuracy for 4 tires simultaneously. LCD Three digital display ensure the high resolution ratio and guarantee high-accuracy. 4、4 Wireless Senser --- Come with 4 external Tmps sensor in total suit for 4 Tire car. Easy installation /u0026 receive real-time signal. The pressure and temperature data can be switched, with pressure unit: PSI/Bar and temperature unit: C/F selectable. 5、Wide Used --- The TPMS suitable for tire pressure tire pressure range less than 3.0 Bar, like sedans, SUV, MPV and etc. Pressure accuracy: 0.01bar. Specification Features: Solar Charge+USB Charge--- Adopt high grade High quality solar battery panel our tire pressure monitoring system is automatic solar charging, you can freely use it in sunny day; Drivers don't have to worry about the continuity of product work often. And you can also use USB cable charge the Tire Monitoring System at night and rainy day. 6 Alarm Functions--- This solar tire pressure monitoring system with 6-alarm mode (high pressure, low pressure, high temperature, rapid air leakage, low battery, signal lost ), promptly reporting with sound and flash for the abnormal tire condition. Ensure a safety driving. Real-Time Simultaneously Display--- Real-time monitoring the temperature and pressure with high degree accuracy for 4 tires simultaneously. LCD Three digital display ensure the high resolution ratio and guarantee high-accuracy. 4 Wireless Senser--- Come with 4 external Tmps sensor in total suit for 4 Tire car. E asy installation & receive real-time signal. The pressure and temperature data can be switched, with pressure unit: PSI/Bar and temperature unit: C/F selectable. Wide Used--- The Tire Pressure Monitoring System suitable for tire pressure tire pressure range less than 3.0 Bar, like sedans, SUV, MPV and etc. Pressure accuracy: 0.01bar. Specification: Tire Pressure Monitor Information: Working Voltage: 3.7-5V Display: LCD Color Screen Working Current: <50mA Shutdown Current: <3mA Signal Receiving Sensitivity: -90dbm Battery Capacity: 800mAh External Sensor Information: Quantity: 4pc/5pc (optional) Pressure Range: 0-3.0 Bar Working Voltage: 2.1-3.6V Waterproof: IP 67 Power: < 10dbm Frequency: 433.92MHZ Temperature Resolution: approx. 2℃（25℃） Packing List: 1 * Solar Tire Pressure Monitor 4 * External Sensors 1 * USB Charging Cable 1 * Wrench 4 * Anti-lost Nuts 1 * User Manual Package List 1 * Solar Tire Pressure Monitor 4 * External Sensors 1 * USB Charging Cable 1 * Wrench 4 * Anti-lost Nuts 1 * User Manual