Hi Forrest:

I have some info on a commercial AC powered unit at:
http://www.prc68.com/I/Sensors.shtml#Demag

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Have Fun,

Brooke Clarke
http://www.prc68.com/P/Prod.html  Products I make and sell
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http://www.PRC68.com
http://www.precisionclock.com
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Web Cam
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