Description：

1.Turn it on, then the meter star to search the signal and LCD will display "GP", if there is still not GPS signal after 3 mins , LCD displays "ER".
2. Blue wire short touch pwoer supply negative, change the color of backlight: Backlight changed in sequence re(default)→green→blue→white→yellow→cyan→purple→(automatic).
Automatic: Automatically switch the backlight color every 1 minute, Cycle switch according to the above sequence.

Feature:

- Backlight: 7 Color LED
- Waterproof IP67
- Range: 60KMH,80KMH,120KMH
- Fitment: for Car Marine Boat 12V 24V
- Working Voltage:9-32V