Compared to the previous ambRC Transponder the NEW RC4 is smaller, lighter, easier to connect and disconnect, and less power consuming. It also has improved wire insulation, which is racing fuel resistant.
Comes with the cool transponder holder shown in the photo below. Slides right in and holds secure
•Half the size, half the weight of the original AMB's.
•Low voltage operability: 2.8-16 Volt compatible
•Comes with a separate holder, so you can easily switch transponders between different cars
•Better quality cable (PTFE) that is racing-fuel resistant
•1-4 cell LiPo compatible
* 100% compatible with RC2/RC3 Timing Systems (previously AMBrc)
* 100% compatible with RC4, and ready for the future
* Transponder weight: 5 grams, with holder and wire as shown.
* Transponder Size (by itself, no holder) 16.2mm x 18.9mm x 5.9mm