Secure top-secret information with an invisible beam tripwire network! Align the beams into a protective perimeter using 3 lazer units. When the perimeter is breached, an alarm will sound alerting you of an intruder. The Lazer Defense Network units have the capacity to be placed 20 feet apart and can be combined with additional units to create massive secured areas. Gear up and protect your space with the ultimate Lazer Defense Network from Spy Gear!