Digital GPS Speedometer ACECAR Universal Car HUD Head Up Display with Speed MPH Compass Direction Fatigue Driving Reminder Driving Distance Altitude Overspeed Alarm HD Display for All Vehicle

I got it for my 1986 Toyota Land Cruiser that was imported into the US from Spain, and thus has the speedometer in kph. It is plug and play, and couldn't possibly be easier to use. The accuracy of it is very high, and it has some customization options if you want. The tachometer looking part is just for show, it doesn't do anything, but the main thing is to get an accurate speed display; and it does that perfectly. It boots right up when you turn the vehicle on, and I have had zero issues with it so far.

This one has a milege count which I wanted.

There is only one button to adjust all those settings. With being only 2 directions to use. It's definitely not the easiest product to use. I returned it mainly for that perpose

Good for me, my speedometer works only when it wants to. Good time as well with compass.

Bought 3 different GPS Speedos (all the cheap Chinese ones off Amazon) for a 120 mile road race I was competing in. This was the one I hoped would be the best, but it wasn't. The Good: Colorful & easy to read. Nice size display & unlike the others, had a great suction cup mount that was very adjustable & good quality. Of the 3 I tested, this one had the smallest "lag time" from when you start to move & it starts the timer as well as changes in speed on throttle. The Bad: The control button was sketchy to use & extremely basic in functionality. The paper instructions were hopelessly bad & extremely difficult to read without a magnifying glass. Pretty much had to just keep hitting the button & hoping for it to display, eventually, what I wanted - which after 5-10 minutes of playing with it, it did. At speeds around 25mph (my race class being 80-124mph), it was ok, but over that the speed & distance got exponentially more & more out of phase with my car's speedo (which was verified by radar as being correct) - thus it was useless for my race. Advert says it can be calibrated, but I haven't the slightest idea HOW, since it is not listed in the instructions. After a 200 mile test, I finally just boxed it back up & later returned it for a refund. Of the other 2 I tried, the 2nd one was slightly better (only 4-5mph off @ 80mph, but with a little higher lag time) while the 3rd had the highest lag time but was dead on speed & distance wise. Bottom line is you get what you pay for or you just happen get lucky. Had this one been accurate, I would have kept it over the other 2.

Item as described

If you do not keep it hot all of the settings go back to the factory who wants to spend every time resetting it and is it worth having this crap for a dead battery I think not would not recommend it

Couldn't attach to mounting bracket. I was afraid to force because it might have broke. Didn't even try in vehicle. Returned.