1Data Reading: The real time data output by the Ecu can be read through the car Obd interface of the data cable, and it supports the nine major Obd protocols. 2Stable Signal: The satellite signal data can be obtained through Gps and for Beidou satellite dual channel module, the dual signal is more stable. 3Hd Display: Clear at a glance, without lowering your head while driving, you can keep an eye on the dynamics of the vehicle at any time, greatly improves driving safety. 4Functions: Obd vehicle speed, rotation speed, water temperature, voltage, altitude, roll angle, pitch angle, latitude and longitude, electronic clock, speeding alarm, starting on the vehicle, etc. 5Light Source Sensor: Adjust the brightness of the screen by light, make use of color high definition Lcd display with higher resolution. 6Free Rotation: The working environment and technical indicators start with the car, and the automatic dormancy function when stopping, with a high degree of sensitivity.