Features： Widely use, work for all the vehicles, cars, SUV, truck, ect.  Easy Installation, plug and play.  Rich Contents:driving speed,voltage,single driving distance, total driving distance,driving time,over speed alarm, freely switch between kilometers&miles.  Detection Alarm Function:OBD multifunction table,each parameter read can be set.  Real-time monitoring of turbo inlet pressure conditions,prevent excessive turbo pressure, protect the turbo. Real-time monitoring of oil temperature,attention to engine health,prevent oil temperature too high,damage the engine.   Specifications: Material: PC;  Color: Black;  Size: About 83 * 68 * 15mm / 3.26 * 2.67 * 0.59in;  Screen: About 83 * 68mm / 3.26 * 2.67in;  Display: LCD multicolor;  Working Voltage: 9V-16Vdc (12Vdc/400mA);  Alarm Sound Level: ≥30dB (A);  Weight：170g / 5.99oz;   Package List： 1 * Head Up Display;  1 * OBD2 Cable;  1 * Suction Cup Holder;  1 * User Manual