Features: Model: P10 - OBD speedometer with car diagnostic tool (not for some for cars). Plug and for play. Real TFT LCD multi color for smart display.The first scan will show the vehicle protocol. Add new functions: Accelerating competitive mode, brake performance test, can read the entire car data stream information. Rich content:vehicle speed, engine RPM, water temperature, Oil tepmerature, intake pressure, voltage, instantaneous fuel consumption, average fuel consumption, driving distance measurement, driving for time, low voltage alarm, high water temperature alarm, over speed alarm, engine fault code alarm, eliminate the fault code. Multi function display mode or simple function display mode can be switched freely to show above content. Specifications: Material: ABS Screen Type: LCD Ambient Temperature: -40 ~ + 80 Relative Humidity: 10% ~ 95% Working Voltage: 9V~16Vdc (12Vdc/400mA) Product Size: approx. 68x46x73mm/ 2.67x1.81x2.87in Alarm Sound Level: 30dB(A) Product Weight: 50g Atmospheric Pressure: 86-106KPa Environmental Noise: 60dB(A) Note: Due to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size. Package includes: 1x Car Head-up Display