Feature 1Solar charging, no need to connect the car cigarette lighter to charge, wireless connection with the sensor, easy to install, attached to the glass. 2Color LCD digital display, clearly display tire information, real-time monitoring of the pressure and temperature of 4 tires. Day and night are very clear, and the receiver can display the time and monitor tire pressure and temperature in real time. 3With alarm function, low air pressure/high temperature alarm, high temperature/leak/low battery alarm, intelligent shockproof cover when the car is driving, no need to open/close. 4The internal sensor and external sensor options can meet all your needs, two units (PSI / Bar) are variable, you can set a unit you like. 5Solar charging + USB charging, new energy solar charging provides working power. High power transmission and high performance.Item Type: Tire Pressure MonitorMaterial: PC+nylon plus fiber/copper nozzleHost Parameters: Host Built-in Lithium Battery: Capacity 280mAh, Model 402040Display: Pressure, temperature, air leakage alarmFrequency: 433.92MHz20.00MHzWorking Temperature: -20-80Storage Temperature: -30-85Charging Method: USB+solarLithium Battery: 280mAhCharging Voltage: DC 5VFactory Default High And Low Pressure Values: 3.0Bar-2.0BarWorking Current: 5MAFactory Default Temperature Value: 68Installation Location: Center consoleSensor Parameters: Button Battery: Capacity 60mAh, model CR1632 (included)Waterproof And Dustproof Rating: IP67Frequency: 433.92MHz20.00MHzSensor Pressure Range: 0-3.5BARStorage Temperature: -30-85Accurate Pressure: +/-0.1BarAccurate Temperature: +/-1External Working Temperature: -20-80Built-in Working Temperature: -40-120External Battery: CR1632 (NOT Included)Built-in Battery: CR2050 (Included)Instructions For Use: Plug and play Package List: 1 x Host 4 x Sensor1 x Manual 1 x Wrench4 x Nut1 x Adhesive Film