Stop wondering how fast your RC car can run and how high your RC Airplane or helicopter can fly. Now all these data come at your finger with the GPS SPEED METER by SkyRC. The popularity of GPS devices inspired SkyRC to design this gadget at about 41g. The Speed Meter is the result of SkyRC’s ongoing development efforts boasting an ultra compact GPS module with hidden antenna design the high-sensitivity GPS receiver chip can do quick positioning a robust controller IC to keep recording speed and altitude in real time. This gadget is ideal for RC racing/flying and casual biking driving and long journey. User could easily view the screen while working out data such as speed altitude total mileage/kilometer longitude/latitude. The gadget records the top speed and top altitude for instant recall after the running. It will help RC fans much to fine-tune their RC gadgets to achieve better performance. Features Compact and easy to carry Speed meter with top speed memory Top altitude GPS Coordinator Built-in 4M flash (recording time: 6 hours) UTC timestamp logged for each track point Built-in rechargeable LiPo battery 200mAh (Operating time: 150 minutes) Support both Metric and Imperial system of measurements PC link for data logging & Google map Firmware upgradable