Originally Posted by Ryan Maker

Hey Michael,

I just ordered a Grenit one. It is wireless and actually reads out your times through earphones to you, as your car passes by the receptor next to the track. I have been lucky enough to use one, and found it fantastic, so i bought one for myself.

You can find them at www.grenit.com... they are quite pricey, but it's well worth it.

Hope this helps.
Ryan.