Laser Beam Alarm


Posted on Jul 24, 2012

This Alarm can be used to protect your property, Inside or Outside. And it can protect a Very Large area such as the complete perimeter of your yard. Be Aware: There are some Possible Drawbacks: Snow or Fog could Block the Beam, Giving a False Alarm.


Laser Beam Alarm
Click here to download the full size of the above Circuit.

You may also want to Build More than one of these alarms, so as to detect intruders in Different area`s, Making a More Refined System. It uses the Cheap "Laser Pointers" (Slightly Modified) as the laser light source and they are found




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

100 MHz RF oscillator with ATtiny12
Delayed Alarm Circuit
Infrared Transmit and Receive
sequencer
flip flop led flashing circuit
Automatic 12 Volt Lamp Fader
ujt triggering circuit
Loudness Control
The signal processing circuit



Top