Abstract: A tag has an intelligent function such that when radiation of a burst signal synchronized with a power source frequency from a transmission antenna (20) is detected, it transmits a response burst signal after completion of reception. Then, when a predetermined number of burst signals have been detected, the tag outputs an alarm. Also, an alarm device main body outputs an alarm when a predetermined number of response burst signals have been received. To provide article monitoring apparatus and article monitoring system which determine whether or not an unpaid article is taken out with reliability. According to the present invention, it is possible to provide article monitoring apparatus and article monitoring system which determine whether or not an unpaid article is taken out with reliability.

Abstract: A chain cable retainer includes a plurality of same-size link members made of a resilient material and connected to each other in a longitudinal direction to form a flexible guide for guiding a cable. Each member includes a bottom plate and a pair of side plates integrally attached to the bottom plate. The pair of side plates includes a pair of front, outside plates and a pair of rear, inside plates integrally connected to the respective ends of the outside plates. The inside plates are provided with projections and outside plates are provided with holes engaged with the projections, in such a manner that a link member can be pivotably engaged with respect to an adjacent link member. A low-rigidity part, such as a longitudinal groove, is provided on each of the side plates, so that the pair of inside plates can easily be inserted into the pair of outside plates to allow the projections to engage with the holes.