Anybody know how to make the "LAP" input of SR3300T works ?
Plug in a lap count sensor, then the D3S with dispaly the lap count ?

Hi, I have the same system as this, the Transmitter doesn't display lap times, you need a separate transponder and receiver for that.
If you got to the Spektrum website the part numbers will be there. You'll have to search for the items though.

Thanks, i checked the manual of SR3300T.
Can't find the anything regarding the input of LAP.!?
Anymore idea on this .........?

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You need these

http://spektrumrc.com/Products/Defau...ProdID=SPM1330

http://spektrumrc.com/Products/Defau...ProdID=SPM1453


Cheers

The links above will show you the items that you need to get lap times.
All you have to do is bind the receiver to the transmitter
I take it you have the sensor??