I can't remember exactly, but you can certainly hire them and they are the same model as mine. The analysis is sitting on a laptop for all to see with your name against it, so no hiding place, unless you give someone elses name of course. I think I used my own transponder last year, but it just doesn't show your name as you didn't hire one, (fair enough), you just need to know which code number your one is sending to the laptop. I could be completely wrong, but I think I used mine last year, (or was that one I nicked from one of the guys who hired one?). Don't know, but I'm taking it just in case. I also have a T200 laptimer so you're welcome to borrow it.