Hi community! 
Below is an introduction video of the Comnav R550 data collector 
Enjoy! 
The SinoGNSS R550 is a professional GNSS data controller with smartphone capabilities, it has 5”sunlight-readable touch display and backlight keypad. Combined with integrated Bluetooth®, you are able to easily connect or control the ComNav Technology GNSS receivers, enhancing efficiency and productivity in the field 
Shop now on https://globalgpssystems.com/comnav-r550/ 
