LCD Solar Wireless TPMS Tire Pressure Monitor System 4 Internal/External SensorsSpecifications:Model Number: D80067Product Name: Tire Pressure Monitor SystemColour: BlackMaterial: ABSWorking Frequency: 433.92MHz68KHzOperating Current:3mAQuiescent Current: 100AOperating Coltage: 2.6V~3.6VWorking Temperature: -20C ~ 70CBuilt-in Battery: 3.2V 160mACharging Enviroment: 10C ~ 60C/14℉ ~ 149℉Solar Charging Current: 15mAUSB Charging Current: 40mACharging ways:Solar energy/USB(USB cable is not included)Size: about 98mm x 67mm x 28mmExternal Sensor:Colour: BlackOperating voltage: 2.1V~3.5VCurrent: Standbyless than0.7A, Workingless than10mAPressure range:0 - 8.0 BarBattery Life:more than24 monthsWorking Temperature: -30C~ 60CWaterproof: IP67Frequency: 433.92MHzSize: about 21mm x 15mmInternal Sensor:Colour: Black and silverOperating voltage: 2.1V~3.5VCurrent: Standbyless than0.7A, Workingless than10mAPressure range: 0-8.0 BarBattery Life:more than5 yearsWorking temperature: -40C ~ 125CWaterproof: IP67Frequency: 433.92MHzSize: about 79mm x 54mmFeatures:-Solar PowerUSB Charging: 2 charging ways which ensure the tire pressure monitoring system will work continuously, and do not occupy the car cigarett e lighter socket.-6 Alarm Modes: fast leak alarm, slow leak alarm, high pressure alarm, high temperature alarm, sensor fault alarm and sensor battery low power alarm, ensure safe driving.-Digital LCD Screen: the monitor displays real-time pressuretemperature, it can be placed anywhere