I can't figure out the proper name of something
in [Design]
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From: brent on 30 May 2010 21:31 On May 30, 12:08 pm, John Fields <jfie...(a)austininstruments.com> wrote: > On Sun, 30 May 2010 06:25:27 -0700 (PDT), brent > > <buleg...(a)columbus.rr.com> wrote: > >I am looking for a light sensor like is used in a garage door system > >to detect if an object is between a light source and light sensor. > > >I need something to put in my back yard to detect if someone is > >breaking through a particular path. It is like a light activated trip > >sensor , used for home security awareness, but I cannot figure out > >what this device is called so I can find it online to purchase. > > beam break detector. > > JF Thanks all for replies
From: Paul Hovnanian P.E. on 30 May 2010 21:46
"krw(a)att.bizzzzzzzzzzzz" wrote: > > On Sun, 30 May 2010 06:25:27 -0700 (PDT), brent <bulegoge(a)columbus.rr.com> > wrote: > [snip] > > > >Background: Just had some people crawl through my back window a couple > >of weeks ago and steal some stuff with house full of people, nobody > >heard them. I want more situational awareness. I also have other > >more effective means now of dealing will them too. > > Rottweiler. And a sign that says "Whet the dogs leave, we feed to the pigs". -- Paul Hovnanian mailto:Paul(a)Hovnanian.com ------------------------------------------------------------------ In the beginning, there was nothing. And God said, "Let there be Light." And there was still nothing, but you could see it. |