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

Bought for my golf cart and works great. Looks nice and adheres to the dash. Easy install..

- Extremely easy to install. Just plug the cable in to the USB/cigarette lighter adapter, start the vehicle, and it starts working!- When I first saw it, the device was smaller than I expected, but the numbers are large enough to easily see, and the device fits well behind my steering wheel.- As mentioned on the Amazon product site, the time is set to Eastern time. The time zone can be changed in settings, but I didn't bother, since all that concerns me with time are the minutes.- I was impressed with how quickly it connects to the satellite without needing internet connection, or a monthly subscription.- The speedometer on my car quit working a couple years ago, so it is great to have this HUD to show me my speed.Attached are copies of the directions (which I could not find anywhere online). I did decide to change the time to Pacific, and in the process managed to lose the speedometer function. When I finally restored the speed, it was in KMPH instead of MPH. Fortunately I was able to find the original box, with the instructions in it, and able to correct the speed unit and the time. I also changed the calibration, as another reviewer recommended, so it no longer shows speed as 7% higher than actual speed.It would be wonderful if ACECAR put a copy of these instructions on the product page.

I purchased this because it is difficult to see my speedometer at night. Works very well; easy to see and is pretty accurate. I definitely like the heads-up aspect to the device. Very pleased with the item. (You likely will need some 3M double-sided foam to mount on a dash; it will slide around otherwise).

The speedometer is definitively going back. It is so lightweight, and because of it ,the charger keeps turning it around. I have yet to be able to see the front while I drive. The sticker will not hold up in the heat.

I plugged it in right out of the box and was surprised at how well it worked. Great value for the price. There is a few second delay before it starts to read the speed, but we checked it against a phone app speedometer and it was dead on accurate. I would definitely recommend.

I got this for an antique sports car that has the wrong size tires. Regearing the stock speedometer is not easy So I got this GPS unit. I mounted it on the steering column near the speedometer.Note that the default calibration is to show a number 7 percent too fast. To get the true speed, you have to change the calibration factor to 100.Also, it takes a minute or two to sync up to the satellites each time it is turned on, so be prepared for that when starting each trip.

Very nice unit for the price. It’s accurate, bright, and multi functional. Great value.

Controls are a bit Counter intuitive. and this has to be placed up high on the dash its a great sanity check tool i use to verify Phone GPS speed is accurate, and Speedometers on trucks are accurate after new tire sizes. Mileage seems a bit off but otherwise it works great. and brightness is adjustable i thought it would be very dim and almost unreadable in the day its not.