85MM Black GPS Speedometer 0-80MPH/0-120KM/H Gauge Waterproof for Boat Car Truck
IP67 waterproof and dustproof grade. Blue: Connect the button with the blue line to adjust the short mileage setting to zero. 7 Backlight color:red,green,blue,white,yellow,cyan,purple(automatic. OLED LCD, working temperature - 40 ℃ ~ + 80. ).