Patent ID: 7272945

Claim:
A system for detecting at least one environmental condition in a room, said system comprising: one or more detecting devices having a sensor configured to detect the at least one environmental condition and to display the detected at least one environmental condition, at least one of said one or more detecting devices comprising identifying indicia, said identifying indicia being configured to distinguish the at least one detecting device from the other one or more detecting devices; one or more reader devices configured to image the one or more detecting devices; a controller configured to communicate with the one or more reader devices, wherein said controller is operable to control said one or more reader devices and to receive the images from the one or more reader devices, and wherein said controller is configured to determine the at least one environmental condition based upon the images of the one or more detecting devices; and a memory accessible by said controller, wherein said controller is configured to store the at least one environmental condition in the memory.