GPS Digital Speedometer for Car MPH, Golf Cart Universal HUD Speed Meter, Head Up Display Car Accessories with LED Large Font, Plug and Play for Car Truck Motor SUV All Vehicles

Plug and play. Works fantastic and easy to read. A real bargain!

I picked up this GUGUMO digital GPS speedometer for my Lincoln Mark VII, since the analog speedometer isn’t as accurate as it used to be. This GPS-based unit provides a consistent speed reading, though I’m not entirely sure it’s precise down to 1 MPH—it seems close enough for practical use.To test its accuracy, I compared its readings against multiple radar speed traps around town. In my experience, the speedometer consistently displays a reading 3 MPH faster than what those radar traps show. It’s possible the device is perfectly accurate and the radar traps are off by a couple MPH, or maybe there’s some variation in calibration between individual units.Overall, I’m satisfied with how it performs, but there are a few things worth mentioning. The screen is bright and easy to read, unless there’s direct sunlight—in which case, it becomes almost unreadable. Since it runs on GPS, it has to acquire a signal before displaying speed. If I start the car in an open area, it connects in about 5–10 seconds, but in wooded areas, it can take up to 1–2 minutes, which isn’t ideal. That’s likely more of a general GPS limitation than a fault of the device itself.Despite these minor issues, it’s a useful tool and has become part of my daily driving routine. If you need a reliable digital speedometer, this is a solid choice—just keep in mind the occasional signal delay and screen readability in bright conditions.

We bought this to use with a sport utility vehicle that does not have a speedometer but is street legal where we live. It was super easy to set up - we used Velcro to attach it to the dash and it just plugs into a auxiliary power outlet / cigarette lighter. It works great and is large, bright and easy to see even in the daylight. It is accurate as we have checked it against city speed signs and it matched perfectly. It was a great value compared to having a professional speedometer put it.

Handy little gps speedometer unit. I’ve used it for both my boat and to verify the speed of my truck after putting on bigger tires. Boat speed displayed on the speedometer matches what my phone says, so I believe it to be accurate. I really like the different color options for the display. I do wish there was a brightness adjustment as well as an internal battery that would allow it to function when not plugged in, but neither of those are a deal breaker for me. Really happy with this unit!

The great little product was as accurate as my garmin.

Works pretty good about 60 mile an hour at registers 3 mile an hour faster than what you were driving

Mine worked perfectly. I have an old Toyota that the speedometer didn’t work so I purchased this to see how fast I was going. I used double sided gorilla tape and also purchased a 90 degree bare wire USB C connector and hard wired it into my ignition so that it would turn on/off with the truck. It works great and seems accurate.

When I got it and plugged it in it did not work it’s not my cigarette lighter I tried it in multiple different cars I ordered another hoping this one was just a faulty