The concealed system is suitable for retailers who prefer not to have any visible antennas at the store front. This will give a more free flowing entrance and better aesthetics but sacrifice on the benefit of deterring potential shoplifters with visible antennas. The concealed system requires the system to be laid on the floor of the entrance hence installation needs to be done prior to renovation. The system is based on 58khz frequency hence all AM 58khz tags and accessories can be detected by the system.