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Tracthat LLC

Walter V Raczynski

Charles L Zimnicki

Geoff Yunker

An auto-calibrated proximity sensor used with a protected item in a retail display security system includes a metalized surface that cooperatively interacts with a printed circuit board to form a capacitive cell. A microcontroller senses changes in the frequency of the capacitive circuit if the orientation of the metalized surface changes with respect to the printed circuit board.

Auto-calibrating proximity sensor for retail display security system

A retail security display system includes an onboard power supply and alarm system that sounds in the event a protected device is tampered with or removed from the display system. The retail security display system also includes a central communication module that manages information from a plurality of display devices and tracks the location of a protected device if it is removed from the display device.

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Arlington Heights, IL, United States of America

Walter V Raczynski