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How To Protect Your Home With Laserbeams

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• 36,967 views 30,000 on Howcast, 6,967 on other sites »
  1. dvorak.org (3,747)
  2. techamok.com (1,701)
  3. Anonymous (843)
  4. veoh.com (214)
• Here is an easy to make, low cost laserbeam security system that beats anything I have ever seen!!
• Added March 6, 2008

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Show comments rated greater than 10 Show comments rated greater than 5 Show comments rated greater than 0 Show comments rated greater than -5 Show comments rated greater than -10

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Show Comment by JayOlay (Rated 3)

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This is the best thing ever.

Reply 8 months ago by JayOlay

Show Comment by philmik (Rated 3)

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That's great ! Thanks!

Reply 8 months ago by philmik

Show Comment by sanjay (Rated 2)

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This is awesome. So freaking cool.

Reply 9 months ago by sanjay

Show Comment by nimprojects (Rated 1)

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Wicked. Love it. I might actually try and build this...

Reply 7 months ago by nimprojects

Show Comment by novement (Rated 1)

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thanks

Reply about 1 month ago by novement

Show Comment by roselea (Rated 0)

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<a href="http://www.youtube.com/watch?v=WVpi7YqExTY">Google Local Marketing </a> It is great. roselea.

Reply 6 days ago by roselea

Show Comment by roselea (Rated 0)

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<a> Google Local Marketing </a> It is fabulas.

Reply 6 days ago by roselea

Show Warning by sastresillo (Rated 0)

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Warning

hmmm... i don't think this will work with the schematic he provides (at around 00:47sec). The schematic should look more like this: http://img242.imageshack.us/my.php?image=schir8.jpg otherwise it looks like the siren will ALWAYS be on (+9V to the base of the NPN).

Reply 6 days ago by sastresillo

Show Comment by zebnsarah (Rated -1)

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dude your such a shill selling out likr that i ust to love you ps your 6vold batery hack sucked what brand did you use!!!!!!!!!!!!!!!!

Reply 7 days ago by zebnsarah

Show Comment by simonax (Rated -1)

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n1 w0rk - thx

Reply 9 months ago by simonax

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