1. A device for automatically supervising a fitting room, comprising: a controller programmed to receive monitor signals from an environment monitor located in a monitored zone; each of said monitor signals including at least one of image data, a video signal, and an audio signal; a first of said monitor signals being responsive to a person entering an area and a second of said monitor signals being responsive to said person leaving said area; said controller being programmed to compare said first and second monitor signals and to generate an alarm when said first and second monitor signals differ beyond a specified threshold.