Elenco Motion Detector Kit [ SOLDERING REQUIRED ]Fun introduction into the exciting world of electronics Put an alarm on your room, closet anywhere you want to exclude intruders Learn proper soldering techniques Clearly written and completely illustrated instructions Some soldering required Any kid with siblings and a strong territorial sense will love this kit. It senses motion then sounds an alarm when someone or something walks near it. This easy to build "Learn by Doing" electronic kit lets kids