It Works!

I use this app on my Ski boat. My mechanical speedo broke 2 years ago and I was going to replace it. I never thought I could use GPS on the water. I tried other apps and they were not accurately and I was unable to see the app clearly in the sun. This app works perfect I can see it in the sun and it give a set top speed warning for getting the right speed for guys Wakeboarding and Skiing.
Thank You!!!!!

Wiredright1 about Speedometer Speed Box, v5.2.4