O2 sensor's displays

[Regnirps at aol.com]

I'm going to try and find a price point by doing a few eBay auctions on 
EHO/HEGO readouts. If you would like to take a look,

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=104380289

Next challenge, a circuit to make a standard EDO give an accurate reading 
when the mixture is well away from the 14.7/1 center. Or maybe I'll add a MAP 
display to the original. Those MAP sensors are great.

Charlie Springer