Features:- Solar power charging, dont need to charge by connecting car c igarette lighter- Colorful LCD Digital displaying, clear to show tire information- Rear-time monitoring pressuretemperature of 4 tires- Low air pressure/high temperature alarm- High Temperature / Leakage / Low Battery Alarm- Intelligent Shock Boot when car moving, dont need to turn on/off- Wireless connect by sensors, easy install- Build-in sensors and external sensors options, meets all your need- Freescale chip sensors and fit on almost 98% cars on marketSpecifications:- Working Frequency: 433.92MHz50KHz- Sensor Working Pressure: 0-60Psi2 Psi(Note: For car only)- Sensor Transmit Frequency: 433.92MHz- Sensor IP: IP67- Working Voltage: Sensor: 2.1-3.6V; Receiver: DC 3.7-5V- Receiver Working Temp.: -2 ~ 75 C / 28~167 F- Receiver Storage Temp.: -3~80 C / 26~176 F- Sensor Working Temp.: -40~90 C / -40~194 F- Sensor Storage Temp.: -40~100 C / -40-212 F- Receiver Battery: Built-in 400mAh battery- Receiver Charge Time: About 1h by DC 5V 1A- Sensor Battery: Included- Certification: CE, FCC- Sensor Size: 56x80x14mm/2.2x3.1x0.6- Display Size: 95x82x27mm/3.7x3.2x1.1Package Included:1 x Tire Pressure Monitor4 x Internal Sensor (pre-assembled no need tool)1 x Host Mat1 x Stick Pad(pre-assembled)1 x Disassemble Tool1 x USB Cable