Home Do It Yourself Laser Tripwire Alarm – Use Mirrors to Make a Multibeam Tripwire 1 Do It Yourself Laser Tripwire Alarm - Use Mirrors to Make a Multibeam Tripwire 1

Do It Yourself Laser Tripwire Alarm – Use Mirrors to Make a Multibeam Tripwire 1

Do It Yourself Laser Tripwire Alarm – Mount the Laser Pointer and the Alarm Circuit to Form a Single Beam Tripwire 3

Do It Yourself Laser Tripwire Alarm – Use Mirrors to Make a Multibeam Tripwire 2