For sale is a pair of Wild Planet toy spy sensors, which will sound alarms when tripped. Come with a plastic carrying case to hold both of them, which also has a clip to fit on a belt. Each sensor uses two AAA batteries each, and measures about two inches in diameter, making them easy to carry or conceal.
The motion sensor will sound if it is physically moved, such as if placed behind a door or other object that must be moved.
The "invisible beam" sensor is actually a light sensor which trips when the lighting suddenly changes, such as from a nearby lamp being turned on or off or a door being opened to a darker or lighter room.
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do NOT contact me with unsolicited services or offers