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Home Do It Yourself Laser Tripwire Alarm – Mount the Laser Pointer and the Alarm Circuit to Form a Single Beam Tripwire 1 Do It Yourself Laser Tripwire Alarm - Mount the Laser Pointer and the Alarm Circuit to Form a Single Beam Tripwire 1

Do It Yourself Laser Tripwire Alarm – Mount the Laser Pointer and the Alarm Circuit to Form a Single Beam Tripwire 1

Do It Yourself Laser Tripwire Alarm – Secure the Loose Parts to the Board with Hot Glue 4

Do It Yourself Laser Tripwire Alarm – Mount the Laser Pointer and the Alarm Circuit to Form a Single Beam Tripwire 2