Abstract: A diaper apparatus includes a diaper having absorbent material formed between inner surfaces of opposed inner and outer layers each having an outer surface. Two conductors are applied to the diaper, and a mounting plate is affixed to the outer surface of the outer layer of the diaper with fasteners formed with electrical connectors electrically connected to the two conductors, respectively. An alarm unit having two complementing electrical connectors, and an alarm electrically connected to the two complementing electrical connectors. The electrical connectors detachably secure the complementing electrical connectors detachably securing the alarm unit to the mounting plate and electrically connecting the electrical connectors to the complementing electrical connectors. The alarm of the alarm issues an alarm stimulus in response to wetness applied to the diaper electrically connecting the two conductors applied to the diaper.