Flying Tach

[jdunk]

Any one try this this thing out? wondering if it works i have my doubts.

http://www.primediscs.com/proddetail.asp?prod=flyingtach

[stpitner]

that picture makes it look like it's sitting on top of an ultimate disc.  might not be exactly what you're looking for.

[can't putt]

You can buy 'em off Ebay and put 'em on whatever disc you want.
http://cgi.ebay.com/Tachometer-and-Flight-Timer-Module-for-your-Frisbee_W0QQitemZ170384073171QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item27abaea1d3