GNSS Performance Analyzer RC GPS+GLONASS Speedometer, Bluetooth Enabled Race Data Logger and Speed Tracker for RC Cars and Planes. GSM020 SK-500023

One of the best GPS devices for our RC vehicles..easy to use with the App and accurate. I do recommend you buy a case /holder for it though because one high speed tumble and its gonna get all scratched up and look ugly lol dont ask me how I know lol you can order a case/holder on Etsy or maybe ebay and amazon. I did a short distance speed run on my Rlaarlo omni terminator rc truck and i got 44mph as shown in the pic. Very satisfied with this GPS device. Battery life is ok too i dont use it much but so far the battery life is decent and uses the regular type c charger which is great.

I recently purchased a Traxxas Maxx V2 (Widemaxx) and liked the onboard telemetry that it already had. I bought the bluetooth module for the transmitter, and explored and used the Traxxas Link app enough to get familiar with it and noticed that it used rpm, tire size, and gear ratio to determine the speed of the vehicle. I figured that it would get a good estimate on vehicle speed by using math and such, but I felt that it would only be in the ballpark and wanted something more accurate and definite like a gps unit would. I was going to buy the telemetry expander kit and Traxxas's gps module, but it was a little out of my price range, even though I felt it would be nice to have everything in one app. However, every time a watched a YT video of someone doing a speed run, they had this SkyRC module and I wanted to know why they were using this instead of the Traxxas unit. Price is my guess, as this is more affordable and it is also universal to anything you want to strap it to. In my limited use of this device, I will say that it is a great unit. It's small (there are no actual buttons on it, it powers on when you open the app) and the app is very simple and straightforward to use. I currently have it velcro'd and ziptied to the front shock tower brace (just above and forward of the steering servo and bellcrank on my maxx) and crashed and tumbled and it's been just fine. No issues with durability whatsoever. The battery life is fine in my opinion (I have used it about 4 or 5 times on some 10-15 minute speed run/bashing sessions and it's still at 80% battery life), and I mounted it in such a way that the usb port is accessible without me having to cut the zipties and remove it from the truck. As far as accuracy is concerned, I feel that it's about as good as it's going to get (what's better than gps in this instance? ). I typically see it linked to around 12 or so satellites, and I live in a moderately wooded sub/rural area and it connects to them within about 30 or so seconds. Great buy, No complaints with the unit or the app

This thing is awesome. Wish I knew about it prior to buuing my traxxas telemetry kit. This is so much simpler and more accurate then the rom sensor I initially installed. Can move it from car to car, just velcro/command strip it on, download app and see your top speed. Have and woukd definitely recommend this. Well worrh the orice rag! If you r on the fence rather to pull trigger or not on it then hands down I would so absolutely! Cool gadget to have!

So, cool using this unit. It just works and it is so easy to use. Of course, as long as you have a smart phone. It has a lot of things you use it for, but I admit I have used it so far mainly for top speed tests. I plan to try other features in the future but for now that is it. So easy to setup and use. If you're thinking of getting one, just do it.

Very good, gives you all data you need. SPEED

It works well enough, but the app kind of sucks. There is no power button, and the unit doesn't always turn off when you power it down via the app. Next time you go to use it, the batteries are dead. The app could be a little bit better. The app will occasionally freeze, and the only way to get it to work again is to go into app settings and force stop it, and then restart your phone. Sometimes you have to reset the gps unit itself. A sim card tool or safety pin works best, but there is no tool included with the unit.

Works great. Fair price.

Simple easy to use great battery life easy set up seems to work with no issues