>it refences a sensor > >Spectron: L-211 >Fredricks: 0725-5006 > >does anyone know where i can get a few of these and how much they cost? Hi Michael, I deal with both these companies on a weekly basis. The particular Spectron sensor you refer to is a very expensive one meant for commercial aircraft. Both companies make a dual-axis sensor that is more affordable and gives two axes of output. $50 is about what it will cost in quantities of one. Both companies sell direct, but Spectron has a rep(which is good, because their phones are usually busy). I'll get you some phone numbers when I get to work(they also advertise in Sensors magazine, if you have a copy or maybe they have ads at http://www.sensorsmag.com/ Cheers, Bob http://www.bobblick.com/