1. 2 in 1 Smart Car Safety System: GPS Heads-Up Display & Vehicle Inclinometer 2. Plug & Play: Activates with the car and shuts off when the engine stops. 3. Easy installation: Comes with a car charging cable, compatible with all vehicles. 4. Speed Unit: KM/H with easy switching. 5. High-precision GPS module with dual-channel satellites for real-time speed, voltage, pitch angle, compass, and coordinates display. Features a built-in slope sensor for measuring pitch and roll angles. Includes various alarms for over-speed, high voltage, abnormal altitude, fatigue driving, tilt angle danger, and pitch angle danger. Supports clock and driving speed calibration. Product Specifications: - Power Supply: DC 10V ~ 30V - Pitch Angle: -40 ~ +40 - Time Error: Less than 1 minute - Voltage Precision: 0.5V - GPS Cold Start Time: Average 32s - GPS Update Rate: 1S - Dimensions: 127x25x60mm (L x W x H) - Operating Temperature: -40 to +80 - Roll Angle: -40 ~ +40 - Voltage Range: DC 10V ~ 30V - Speed Precision: Less than 0.36Km/h - GPS Hot Start Time: Average 1s - Wireless Transmission Frequency: 2.4GHz - Color: Black - Material: ABS Package Includes: - 1 x Main Unit - 1 x Holder - 1 x Car Charging Cable - 1 x User Manual Note: The product color in images may vary slightly due to lighting and display differences. Measurement inaccuracies may range from +/- 1-3cm.