At 03:08 AM 3/14/2005, Kevin Lightner wrote: >Ever consider a hall effect sensor and a strong, but tiny magnet instead? :) Yep! http://home.earthlink.net/~ijfritz/sos_over.htm http://home.earthlink.net/~ijfritz/sos_close.htm http://home.earthlink.net/~ijfritz/sos_cir3.htm http://home.earthlink.net/~ijfritz/sos_cir4.htm