http://www.ramseyelectronics.com/cgi...ction&key=LTS1
Or you can modify a laser pointer and use a Radio Shack photodiode to
trigger the relay pretty easily... I can send a schematic if you
like...
fazelock
On Mon, 29 Sep 2003 01:24:17 GMT, Jim Davis
wrote:
I need a 30 foot outdoor IR beam "fence" ,
that closes a relay when the beam is broken .
Thanks ... Jim