TPMS Tire Pressure Alarm Sensor Monitor System colorful LCD Display Internal / External Solar Power Charging Temperature Warning TPMS Tire Pressure Alarm Sensor Monitor System Car Colorful Display Internal / External Solar Power Charging Temperature Warning Notice: Pleaseturn on the tpms tire pressure monitoring after charging. Features: Solar power charging; High and low pressure, leak alarm; LCD display screen, Simple user interface High accuracy, Using Freescale imported chips; Real-time monitoring tire pressure and temperature; Smart start: parking automatically sleep, the car starts automatically wake up. Visual and sound warning Air leakage warning, low pressure warning, high pressure warning High temperature warning, low power warning and no signal warning Solar power for normal use. Available USB charge for sunless day Specification: Solar power charging LCD displaying Adhere to windscreen for installation Operating frequency: 433.92Mhz 50KHz Operating voltage: 3.7-5 V Working temperature: -20 -75 Adhere to windscreen for installation Operating frequency: 433.92Mhz 50KHz Operating voltage: 3.7-5 V Working temperature: -20 -75 Colorful Display --- External Installation Version: Colorful Display --- Internal Installation Version: Packing: 1 set Solar Charging Tyre Pressure Monitoring System 4 External sensors / 4 Internal sensors 1 USB cable 1 set accessories (tool) Parameter: 1.Monitoring system body Operating voltage: 3.7-5V Storage temperature:-30-90 working temperature:-30-85 RF Emission frequency:433.92MH50KHz e="box-sizing: bor