itself, automatically correct the calibration of magnetics deviation angle and installation angle, and support high accuracy latitude and longitude coordinate collection.Horizontal Slope Balancer: Support horizontal roll angle and pitch angle monitoring, accurately display the number of uphill/downhill degrees and left/right slope angle, timely warning to ensure smooth driving.Safety Driving: Digital speed display, accurate and more intuitive viewing, GPS speed measurement, high accuracy, fully automatic monitoring of vehicle driving conditions, support over-speed alarm and fatigue driving reminder, eliminate safety hazards.Voltage Detection: Real-time monitoring of battery voltage, avoiding abnormal voltage caused by the vehicle anchor, not starts, lights affected and other problems, for driving to increase a safety guarantee, extend the service time of the battery.Automatic Dimming: Color LED display, high resolution and with backlight, easy to view. Built-in light-sensing system, it will automatically adjust the screen brightness according to the current environment.Wide Application: Compact size, will not block the line of sight, easy to install and use, suitable for car, truck, SUV, off-road vehicle, etc.Specifications:Color: BlackMaterial: ABS + PCPower: 10-30VRoll Angle: -40~40°Pitch Angle: -40~40°Time Accuracy: