Feature 1BUILT IN GRADIENT METER: Car HUD meter has a built in incline meter that monitors the left and right tilt of the vehicle in real time. Intelligent slope system for stable driving. 2HIGH SENSITIVITY: Car HUD display is highly sensitive and the climbing and descending angles use free rotation, which is suitable for self driving and off road activities. 3REAL TIME POSITIONING: Car slope meter can locate multiple satellites in real time based on location and provide data such as altitude, latitude and longitude coordinates. 4BUILT IN LIGHT SENSOR SYSTEM: Car HUD meter has a built in light sensing system that automatically adjusts the screen brightness according to the current ambient light. 5PROVIDE SAFE DRIVING: Car speedometer supports real time monitoring of vehicle data, so there is no need to keep your head down while driving for the sake of driving safety.Item Type: Car HUD DisplayMaterial: ABSPower Supply DC 10V-30VOperating Temperature -40C To +80C)Voltage Measurement Range DC 10V-30VPitch And Roll Angle -40To +40Voltage Measurement Accuracy +0.3VSpeed Accuracy <0. 36Km/HGPS Cold Start Time 32s (Average)GPS Data Refresh Speed 1sGPS Hot Start Time 1s (Average)GPS Wireless Transmission Frequency 2.4GHz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xDisplay1 x Cigarette Lighter1 x Wiring2 x Accessory