Review on ELING Universal GPS Speedometer Odometer with COG, Trips, & Backlights - 85mm 12V 24V - 80MPH / 120KM/H by Andre Belitz

I replaced the old vacuum speedometer in my boat with this and am glad I did. It works great all season long and looks great on the dashboard. The only suggestion for improvement would be to move the mode buttons to the front of the device in such a way that it is waterproof and can withstand years of harsh conditions. Having to fall back to change modes, reset trip readings, etc. is impractical in my setup and may not be possible in others.