GEYIREN C3 Head Up Display Car Speedometer Obd2 EOBD GPS HUD Clock Glass Projector Electronics Car Accessories For All Car OBDHUD C3NOT With live Navigation C3 including OBD system and GPS system,dual systems,and has two cables,OBD cable and USB cable.OBD2mode working voltage: 11V~18VDC (12vdc/200mA),GPS mode: when voltage is higher than 24v, please use a USB cable for GPS mode.So C3 compatible with all carsOBD2mode including speed,RPM,water temperature,battery voltage,clock,driving time,driving distance,fuel comsumption,altitude,satellite numbers,turbine pressure,air-fuel ratio,intake pressure,KM/H,MPH,data stream....GPSmode supports speed,driving time,driving distance,satellite numbers,data stream......C3 supports speed alarm,RPM alarm,water temperature alarm,voltage alarm,DTCS alarm,fatigue driving reminder.Brightness can be adjusted according to the environment.Auto automatic light sensitive, 1 for the darkest, 8 for the brightest OBDHUD C3 PlusWith live Navigation C3 Plus have additional Navigation Features,can display the driving direction.Brightness can be adjusted according to the environment.Auto automatic light sensitive, 1 for the darkest, 8 for the brightestC3 supports speed alarm,RPM alarm,water temperature alarm,voltage alarm,DTCS alarm,fatigue driving reminder.All In Your Line Of Sight.Displays information directly in front of the driver"'"s line of sight. You can learn current road information without any dangerous actions. All Cars Can Be UsedGPS can be used in all models, and the navigation position is displayed on the C3 machine while driving. Multi-function displayView your fuel level, RPM, engine temperature, voltage, and more together with directions or any other widget.New Electronic Products Hat Allow You To Drive SafelyThe information is displayed directly in front of the driver"'"s line of sight. You can understand the current road information without any dangerous operations.Including all HUD functionsPRODUCT ANALYSISReserved interface (useless now)connection portFQA: 1.The difference between C3 and C3 PlusC3 OBD + GPS---dual systemsC3 Plus OBD + GPS+Navigation---dual systems and navigationNavigation function:driving direction, time, distance,speed Navigation