The ActivePro Transponder is the best-selling active transponder and is mostly used for cycling, skiing, inline skating, triathlon, mud races, motocross events and stand up paddling. It is suitable for most events where high-speed and high precision are required, within the limits stated in the specifications.
ActivePro Transponder Version Support
Support for V1 ActivePro Transponders ended in 2025, while we continue to support both V2 and V3 transponders. The long-term compatibility of our products is a top priority. However, we sometimes reach technical limits, especially when older generations slow down the further development of new technologies. In particular, with our active transponders, we have achieved noticeable improvements in performance, accuracy, and functionality with each new version. To continue on this path, it is not possible to maintain support for older models indefinitely. Our goal remains to provide you with the best and most innovative active transponders on the market. 
How to Identify Transponder Versions
Each transponder has a unique transponder ID, which is printed in black. If there is no “V2” or “V3” printed next to the ID, it is a V1 transponder.
