Features. 1.2023 upgraded model: OBD F12 heads-up display is a compact and powerful meter. Screen: upgraded from TN to IPS 4.5 inch screen, more delicate display effect; Appearance: with obvious ambient light on the edge, especially at night, the effect is remarkable; Dual mode: OBD+GPS design, extremely high adaptation rate; New function: add slope detection function, wider applicable scenarios.2. Powerful: suitable for cars without speedometer, engine temperature gauge, oil temperature gauge, turbocharged intake preure gauge and fuel consumption display. F12 HUD can also display and monitor vehicle battery voltage, generator charging voltage, vehicle over-speed alarm, engine high temperature, etc. In addition, it can read real-time vehicle data streams, scan for engine fault codes and provide and clear fault codes.3.F12 Dual Module Multifunctional Instrument: For vehicles that do not support OBD protocol, you can choose to use GPS mode to display data such as vehicle speed, direction, altitude and off-road inclinometer.Note: OBD2 is compatible with European cars after 2008 and other regions after 2010. GPS mode is suitable for all vehicles (if your car is not OBD compatible, use GPS mode)4. Automatic brightne adjustment: Built-in light sensing system, which can automatically adjust the screen brightne according to the current ambient light intensity, bringing comfortable visual experience.5. Easy to install: stick it on the windshield or put it on the dashboard. Connect to the vehicle via OBD cable, plug and play. It can display vehicle speed, water temperature, voltage, fuel consumption, clock, one-way driving distance, one-way driving time, oil temperature, air intake preure (PSI), etc. Multiple reminders to avoid accidents and ensure driving safety. Specifications. Power supply: DC10V~30VOperating temperature: -40 C ~ +80 CPitch angle: -40 ~ +40 Cro-roll angle: -40~+40Voltage measurement range: DC10V~30VVoltage measurement accuracy: 0.5VSpeed accuracy: <0.36Km/hGPS data refresh rate: 1sGPS hot start: 1s (AVG)Wirele transmiion frequency: 2.4GHzGPS cold start: 32s (AVG)Weight: 300g/0.66lbsProduct Size: 156*83*47mm/6.1*3.2*1.8inch Product List. 1 x HUD speedometer1 x OBD connection cable1 x English user manual2 x Fixing tape