SPECIFICATIONS Want a gauge where you require zero installation effort. The OBD2 Smart gauge retrevies all infromation from the vehicles ECU, OBD2 mode: speed, water temperature, voltage, fuel consumption, clock, single driving distance, single driving time, oil temperature, turbine pressure, acceleration test, brake test, overspeed alarm, engine fault alarm, fault code elimination, water temperature alarm, speed alarm, voltage alarm, kilometer switching, fatigue driving reminder, automatic and manual brightness adjustment, More than 100 data streams can be displayed GPS mode: speed per hour, altitude, number of satellites, clock, single trip mileage, single trip time, compass. NOTE: Only works on OBD2 please ensure you check your vehicle before purchasing, if unsure please contact us so we can confirm