Thread: question for laser trip device

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How much does a laser eye trip device cost? How much for the controller/timer?

Any recommendations on name brands?

If buying used, anything specific to check or any warranty issues?

Thanks
-DG

Do you mean the type that goes across a garage door?

if your talking about the garage door kind you will have to build the circuit your self, it uses a series of 555 timers.

Here's a link/video that shows how to modifiy a pen laser into a trip beam:

Protect Your Home with Laserbeams Video

Might be able to use this same idea for building a simple laserbeam trip circuit for props.

The Pod

I saw this picture on ebay
http://i13.ebayimg.com/05/i/000/ee/cf/4cf8_1.JPG

I was wondering what a good /fair price would be. I would think the laser should be IR so that could not been seen.

This is a used prop from a haunted house, and it got me wondering what they use. This person is local to me, but the guy did not have it available. I might try back later again, to see if he has it.

It looks like a plug, and relay but I am not sure what the green box is.

The Green box is a programmable timer relay. Here is any example of one made by NTE http://www.nteinc.com/relay_web/pdf/R62.pdf They also make a repeat cycle timer shown here http://www.nteinc.com/relay_web/pdf/R38.pdf