Features:_x000D_1real-time monitoring: the liquid crystal display screen at the same time display 4 of the tire pressure and temperature gives you real-time understanding of the tire condition._x000D_Two charging method: tire Pressure Monitoring System TPMS is a combined with solar panels, fast charging, USB charging average resolution time not including a USB cable._x000D_Intelligent alarm: once the occurrence of an abnormal state occurs leakage alarm, high temperature alarm, high pressure alarm, low pressure alarm alarm._x000D_LCD digital screen: clear reading of bright reserve list; Pressure units for BARPSI temperature unit is °C°F, all auto tire real time data at a glance._x000D_Effective protection:_x000D_The high sensitivity sensor has a waterproof, anti-corrosion, anti-theft features, even on a rainy day you don39;t have to worry about your driving safety._x000D_Notice:_x000D_Actual color may be slightly different from the image due to different display and light effect._x000D_Please allow 1-3cm deviation due to manual measurement._x000D_Description_x000D_monitoring: LCD color display_x000D_operating temperature:-20 °C to 80 °C_x000D_working voltage: 3.5-4.2v_x000D_the day the operating currentnight operating currentstandby current: 20 ma 4 ma 50 ua_x000D_transmitting frequency: 433.92 mhz -20 kHz_x000D_transmission mode: frequency shift keying_x000D_pressure Transmitter barPSI_x000D_charging Method: SolarUSB average resolution time not including the USB cable_x000D_battery: 1*402040 3.7V 300mAh_x000D_display size: about .9.5 * 3*1.5cm_x000D_display the weight with solar panel: about 71g_x000D_sensor:_x000D_operating temperature:- 40 °C 125 °C_x000D_working voltage: 2-3.6v_x000D_standby current: 1 ua_x000D_transmitting frequency: 433.92 mhz -20 kHz_x000D_transmit power: 8 dbm_x000D_Open and Distance: 30 m_x000D_battery each sensor:1 * CR2050 3V 330mAh_x000D_sensor size each: about 6.5mm * 3.6mm * 1.5cm_x000D_sensor of the weight each:Approx.30g_x000D_packing size: 21*15*6cm 8.27*5.91*2.36_x000D_package Weight: 370g13.05oz_x000D_Packing list:_x000D_1 * Display_x000D_4 * internal sensor_x000D_4 * circulation valve_x000D_1 * mat_x000D_1 * a bag of screw_x000D_1 * User Manual EnglishPackage List:_x000D_1 Set Tire Pressure Sensor