Transponder help.

[Spils77]

Hi All.


Please can you advise on which personal transponder i would require and where would be the cheapest place to get one?

I have seen the following but I do not know what the difference is between them. My local club runs an RC4 lap counting system but i also require the transponder to be compatiable with other venues as I intend to race vintage classes. When looking at the MRT transponders it states RC4 pre firmware 4.5 so i guess if my local club is running the latest firmware then these transponders will not work?

MRT MPTX Pro
MRT MPTX
MY Laps RC4 (3wire)
My Laps RC4 hybrid (2wire)