C1 OBD2 + GPS Mode Car HUD Head-up Display Compass Speed Water Temperature Voltage Display Speed Alarm Fault Alarm 1. OBD mode display information: vehicle speed, water temperature, voltage, fuel consumption, speed, single mileage, total mileage, cumulative driving time, driving direction, number of stars, altitude, system time, intake pressure, oil temperature, air-fuel ratio, turbo pressure, intake pressure, acceleration test, brake test, read data stream Alarm: overspeed alarm, speed alarm, high water temperature alarm, low voltage alarm, engine failure alarm, clear fault code 2. GPS mode Display information: vehicle speed, driving time, satellite time, altitude, number of satellites, driving direction, single mileage, voltage, acceleration test, brake test Alarm: overspeed alarm, low voltage alarm 3. Features: Stereoscopic imaging optical lens suspends the information stereoscopic display in the air; no reflection, zero ghosting, clearer display during the day 4. Working voltage: 11V~18Vdc(12Vdc200mA) 5. Size: 128 x 64mm