SinoTrack HUD GPS Speedometer Universal Car Heads-up Display 2.7inch MPH Speed Meter with Compass Over Speed Alarm for All Vehicle USB Connect Plug and Play

Muito bom!!

Great GPS speedometer, I put it on a 1977 moped without speedometer. Bought this one because it's the only one on amazon that can be calibrated, after setting the calibration to 97 (three mph slower) it's spot on. But greatly lacks one thing... It has NO way of mounting accept a little sticky pad, so my solution was to very carefully drill a hole through the back and slip a zip-tie through and presto, easy mounting. The auto dimming is also a big plus to readability, but the setting menu is a little tricky. One last thing is it makes a very faint high frequency sound, which probably isn't even noticed by most people.

I gave this Speedometer attachment to my Friend and he Says it Works Perfectly and is Accurate . Update : They work Great for a couple months and then Quit . I have another friend who bought this same Speedometer and hers quit too . So that is two that just Quit for no reason . My one friend ordered another one and just got it , so he’s Trying it again . Hopefully it will work longer than the other one and my Other friends .

Very good for the price you pay. I would consider using a better USB cord though because it ripped overtime

This GPS works very good and is very accurate. This was a very good buy and I am not disappointed with it. It has a big face, but I would say, it's the best size for my pontoon boat.