DIY Laser Home Defense System

March 11, 2010 | By | 2 Replies More

DIY Laser Home Defense System

httpv://www.youtube.com/watch?v=t0FTzUhdg3w

Ever wanted to secure your home the way the high-security agencies do? Well a do-it-yourself laser alarm system is actually pretty cheap and straight forward. All you need are some mirrors, a laser and a light detector (with adjustable gain).

p 1What you need…

1. 2 small project boxes 2. 1 1000uF 35v Capacitor 3. 1 5K Variable Resistor 4. Photocell 5. IC Board 6. 9v battery and clip 7. 1 N3904 Transistor 8. Toggle switch 9. Small mirrors 10. HandiTak 11. 12v DC Piezo Siren – 102dB 12. Aixiz 650nm 5mw 12X30mm laser 13. Aixiz 3.2v AC Adapter
What you need...

Further instructions

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Category: DIY Tips

Comments (2)

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  1. phtocell says:
    June 27, 2010 at 2:54 pm

    what kind of phtocell can i use

    Reply
  2. James Freyd (siding repair kingwood tx) says:
    September 7, 2010 at 4:27 am

    Wow, great material on how to create my own laser security system. I always thought
    doing it was rocket science..

    Hmmm.. I guess I can start building my own now..

    Thanks!

    Reply

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