Digital Speedometers 3.5 Inch For Cars Over Speed Alarm Obd2 Car Hud Display Smart Gauge Gps

GPS mode function: speed, voltage, speed progress bar, single mileage, number of satellites
Alarm: overspeed alarm (single-segment alarm/four-segment alarm) low voltage alarm
OBD mode function: speed per hour, rotational speed, single driving mileage, water temperature, voltage, trouble code elimination
Alarm: overspeed alarm (single-segment alarm/four-segment alarm) high water temperature alarm, low voltage alarm
1X host
1XOBD line
1XUSB cable
1X reflective film
1X non-slip mat
1X manual