GPS Speedometer 3-3/8" 85mm Boat GPS Speedometer Odometer Waterproof Black Antenna TFT Screen Digital MPH Knots Km/h for Boat Marine 9-32V Car

I’m a nerd, and do nerdy things, like add a Speedo to my golf cart. This was super simple to install with the proper hole saw, and then tighten into place with the supplied ring on the back. The gps is solid, even when the antenna was just inside the dash on the cart it worked. I ended up mounting it to the roof to get a faster connection, but nonetheless it works great, the screen is bright and easy to read, and it’s very accurate. I tested its speed reading against a garmin gps and it was spot on.

I ordered this because of the large size and 2-wire installation. The added voltage gauge and compass features were a bonus, I installed this on an older UTV and it works great. Checked the accuracy against my phone and paced with my pickup, the reading is dead on. For the price, the gauge is amazing and easy to read in most all light conditions. Even in bright, direct sunlight it's still very readable. Highly recommended!

This thing exceeded my expectations for the price. Put it in my boat and was super easy to install and very accurate. Also helpful to have a digital read of battery. Just wish it was brighter as it’s hard to read even in shadows

I needed an easy fix for a m998 humvee, but I got lazy and instead of fighting with a speedo cable and tracking down second hand worn out surplus NOS and found this. It was the correct size for the dash so no crazy modifications, supported 24 VDC out of the box and appears to be hermetically sealed. Ideally in thought about prying the thing apart to paint the bezel plate and trim to the marching CARC green, but went ahead with the install anyhow. The display has a fast refresh rate and the brightness is great. Gps RX antenna has a stainless steel bracket and is small enough to mount about anywhere with sufficient coax lead length. MPH accuracy is faster than a standard mechanical gauge and it’s handy to have a compass for funnies. Next test is shock and vibe, and since this truck rides like a dozer driving over bowling balls I suspect any issues will appear fairly quick. Final thoughts are, if it works in a militarized environment / platform it’s probably gonna be fine in your kayak, push mower, home built v2 rocket or what ever. The bonus is not having to buy shady parts from and creepy military surplus dealers and then have to watch you’re back for 72 hours.

This is a great unit for a very low price. Yes, it's not super bright, but those claiming you can't read it in daylight are lying or blind. It's still usable in full daylight.

Works way better than the old pitot or "flipper" type boat speedometers. Solved my problem completely and quite economically.

The main reason I purchased this item was for the speedometer, but I thought the other information would be helpful also. The other information is so small and hard to read that it is useless. Also, the odometer doesn't keep track of any information that is less that one mile, so it is highly inaccurate. Since I am using this in a boat and many trips in a boat are less than a mile, the odometer portion of this unit is a waste of time because of its inaccuracy. The speedometer seems to be accurate and agrees with the gps fishfinders that I have in the boat, but everything else is a waste of time if you're installing it in a boat, as I have.

Works great. Always connects.