Provided is a diaper alarm, comprising a housing and a circuit board (3) mounted in said circuit board, and also comprising a connection mechanism used for removably connecting to a diaper sensor the housing comprises a panel body (1) having an accommodating chamber (11) and a cover body (2) the opening part of te accommodating chamber (11) is arranged on one panel surface of the panel body (1) the cover body (2) is mounted at the opening part of the accommodating chamber (11), and the cover body (2) has a main cover (21) and a secondary cover (23) formed at the first end (22) of the main cover (21) and folded lengthwise around the first end (22) the connection mechanism comprises a connecting electrode (31) arranged on the circuit board (3), and a long pin (24) and several short pins (25) arranged on the lower surface of the secondary cover (23) the connecting electrode (31) is located beneath the secondary cover (23) and corresponds to the several short pins (25) the connection mechanism also comprises a connection hole (12) arranged on the panel body (1) and used for accommodating and holding the long pin (24). The diaper sensor is conveniently, rapidly, and reliably removably connected to the diaper alarm.Linvention concerne une alarme de couche, comprenant un boîtier et une carte de circuit imprimé (3), montée dans ladite carte de circuit imprimé, et comprenant également un mécanisme de connexion amovible utilisé pour la connexion à un capteur de couche le boîtier comprend un corps de panneau (1) comprenant une chambre de réception (11) et un corps de couvercle (2) la partie douverture de la chambre de réception (11) est agencée sur une surface de panneau du corps de panneau (1) le corps de couvercle (2) est monté au niveau de la partie douverture de la chambre de réception (11), et le corps de couvercle (2) comprend un couvercle principal (21) et un couvercle secondaire (23) formé au niveau de la première extrémité (22) du couvercle principal (21) et plié d
