The present subject matter relates to absorbent articles and signaling devices for use therewith. The signaling device includes one or more non-invasive sensors configured to detect the presence of a substance, such as a body fluid, in the absorbent article. The signaling device can provide an audible and/or visible alert to the user of the absorbent article when it detects the presence of a substance. The absorbent article includes one or more identifiable characteristics the presence of which permits operation of the signaling device. In this manner, the present disclosure provides for product and signaling device matching for use.
