Two operating modes: OBD and GPS - OBD mode: speed, water temperature, voltage, fuel consumption, RPM, single trip time, distance travelled (single trip), direction of travel, altitude, etc. - GPS mode: speed, voltage, satellite time, altitude, single trip odometer reading, trip time, angle of climb and descent, etc. MEMS sealed design and adjustable stand - The MEMS sealed structure lets the driver focus on the road without looking down for real-time driving data. - Includes a stand that can be rotated in all directions to adjust viewing angle and height. Wide range of alarm functions - When the car exceeds the speed limit or shows driving abnormalities, a red flashing warning is displayed. - Also provides alarms for water temperature, voltage, oil temperature, exhaust gas temperature, oil pressure, turbo pressure, fuel pressure, engine load, and more to enhance safety. Easy installation and broad compatibility - The speedometer comes with 2 cables; connect the USB and OBD cables and you are ready to go. - Quick and easy installation even for beginners. - Compatible with almost all car models and suitable for all driving scenarios, meeting the needs of car enthusiasts.