Another single button proximity detector that can work through wood,
glass, metal etc can be found at www.qprox.com and look for the QT110.
It looks like a very interesting 8 pin part that can be used for alot of
different apps.

-Ralph
rlandry@haywood.main.nc.us
"If they call it Tourist Season why can't we shoot 'em?"
ICQ# 19545315