Vjoycar Automobile HUD 4"'""'" Touch Screen Multi-function Head-up Display 4x4 Off-road Slope Meter Inclinometer Pitch Roll AngleProduct introduction:Automobile intelligent escort multi-function display T20 is a multi-function display instrument with multi-data such as slope meter, HUD head-up display, compass and so on, which greatly improves the safety protection level of the product to the user and escorts the car owner. Through the GPS/ Beidou dual-channel module to obtain data from the satellite, dual-signal stability and other advantages, commonly used in all models on the market, is a necessary artifact for self-driving enthusiasts. Main function: Roll angle. Compass. Altitude. Pitch angle. GPS speed. Time date. Week. Real-time voltage. Heading angle.Travel time. Driving mileage. Number of satellites. Overspeed alarm. Altitude alarm Main features: Suitable for all 12-30V vehicles. Equipped with high-precision dual-channel satellite GPS module. Automatically monitor the driving condition of the vehicle. The use of high-sensitive touch display screen, high display resolution. Adopt ABS high temperature resistant material design. Start with the car, stop the automatic dormancy function. Switch between Chinese, traditional Chinese and English.Technical specs:Power supply: DC10V~30VOperating temperature:-40 C ~ + 80 CPitch angle:-40 ~ + 40 Roll angle:-40 ~ + 40 GPS data refresh rate: 1sVoltage measurement range: DC10V~30VVoltage measurement accuracy: 0.5VSpeed accuracy: 0.36Km/hGPS cold start time: 32s (average)GPS warm start time: ls (average)Wireless transmission frequency: 2.4GHzWeight: 0.23kg