Selling a GTech SS, a couple were sold last year on this forums, and I picked up one. I have never used it so its is just sitting around collecting dust. See the thread below for more details, pictures from the original for sale thread:
http://www.lotustalk.com/forums/f95/gtech-pro-ss-performance-meter-142969/
It hasn't come out of the box since I purchased it. $85 shipped or best offer. PM me if interested.