Features: 1.Suitable for cars with OBD2 and EUOBD ports (automatic car diagnostic system), plug and play. 2.Multifunctional design, with speed, engine speed, water temperature, voltage, fuel consumption, engine fault code, speed mode display. 3.High-definition display, easy to read. Overspeed alarm includes single-speed alarm and four-level alarm. 4.HUD turns on / off as the vehicle starts and shuts down, effectively protecting the car battery; retaining the manual switch mode makes it easier to control the HUD. 5.The engine speed alarm can help improve fuel efficiency through gear shifts and is very useful for novices. 6.Automatic and manual brightness adjustment mode, glare-free driving. Specification: Condition: 100% Brand New_x000D_ Item Type: HUD Head Up Display _x000D_ Material: ABS_x000D_ Color: As Pictures Shown_x000D_ Brand: SINCO TECH_x000D_ Type: Car Computer Monitor_x000D_ Model: DO905_x000D_ Applicable Models: 12V_x000D_ Screen Type: Embedded_x000D_ Screen Size: Approx. 72 x 31mm / 2.8 x 1.2in_x000D_ Display Type: Number_x000D_ Working Voltage: DC 9-16V_x000D_ Alarm Sound Level: 30db