Digital HUD GPS Speed Slope Meter

I didn't need all the features, but wanted the Compass and Altimeter mainly, and they work great! The inclinometer is nice too, but of course you can only really use it when coasting or stopped. It's got a clock that may need adjusting to daylight savings, and the latitude/longitude is fun and possibly useful for some applications. Mainly though I wanted a compass to be visible all the time and got tired of the cheap spherical oil-filled ones. This one works by GPS, and so does the altimeter, which is very helpful in seeing the changes in elevation, because that does help getting the most economical driving when you know how to gently ease or press the accelerator due to the needs of the slope. Also just really cool to know the elevation of different locations. It's nicely packaged and has a little manual, but you do have to figure out some of it yourself from the hints in the manual. One good thing to know is that changing from Km/hr to MPH in unit settings also automatically changes the elevation from meters to feet. The screen visibility is great both night and day. So far so good! If it lasts many many years I'll have to rate it 6 stars!

Great value for the money. Set up is easy. Mimics the factory gauges on my 87 4Runner plus more features. Comes with a cigarette lighter plug and a hard wire, giving options.

I bought this so I could see the altitude while driving my camper van. The slope meter (good for judging the levelness of a camp site) and voltage meters (van does not have one) were nice added bonuses. The altimeter works well, but when I go over 10,000 ft of elevation, the display is not correct (drops the 2 most significant digits). For example, at 10,074 ft of elevation, the display shows 074 ft. (software bug). I don't use the speedometer, but it reads 2 or 3mph high. This thing works well enough.

Nice little gadget. Tilt and pitch are pretty sensitive. Haven't taken it crawling yet, but I can see the preset alarm going off fairly frequently. GPS speedometer was one MPH higher than my dash, and the lat long were pretty off from what my phone was saying, but elevation was spot on. Love the voltage indicator.

This item is ok and works as expected. I like that the guage shows 1 degree increments, however I think the update interval is way too fast. This causes the reading to bounce between numbers a little too much. I wish this could be a setting the user could change. Other than that the reading is accurate enough, though sometimes it differs from another device I use to check this one.

looks great, has dim feature for night, love the simplicity of control and adjustments, the adhesive lasted 2weeks before it came off which I expected. I used JB weld to secure it to top of dash and it looks awesome. It is very accurate and had not given any issues. I would definitely purchase again.

Purchased this for our jeep. Lasted about 1 month and the gps and all functions will just stop working. Of course return window closed so lesson learned. When it worked it was great and pretty accurate.

Allot of information for the money.

Works well has some adjustment within overall happy

I bought this for the GPS speedometer. Unfortunately, the speedometer (checking against other GPS readings and highway mileage posts) is not accurate, and the correction feature provides only a fixed delta so that it cannot account for a percentage error. Still, it is close enough to be useful, the compass is accurate, and the inclinometer makes me smile every time that I check it.

The speed of this product is not accurate, it's more than 10 km/h difference from my phone and dashboard. how can I adjust this?