Spy Labs: Invisible Tripwire Alarm

Set up an impressive security perimeter with this Spy Labs tripwire alarm system. Press a button to activate LED beams across two transmitters, then align them with receivers on the base station to form an invisible barrier. Any interruption triggers an alarm and exposes the intruder instantly. The compact transmitters work up to six feet apart, perfect for discreet spy missions. Setup is quick and simple with included instructions and expert tips for setting effective traps. Pro tip: Add fog or mist from a humidifier to reveal the light beams and outsmart your opponents! From Thames & Kosmos, for ages 8 and up

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