SKYRC GNSS Performance Analyzer RC GPS+GLONASS Speedometer, Bluetooth Enabled Race Data Logger and Speed Tracker for RC Cars and Planes. GSM020 SK-500023 - Walmart.com
Amazon.com: SKYRC GSM-015 GPS Enabled GNSS Remote Control Speedometer and Altimeter Data Tracking Device for Vehicle, RC Car, Boat, Plane, Rocket, and Quadcopter : Electronics
SPEED-FLEA
SkyRC GPS Speed Meter & Data Logger GSM-015 – Nick Hobbies