An absorption product of the present invention includes: a sheet part having two or more patterns that are formed to be spaced apart from each other in an excretion area, which holds excretion of a user, and conduct electricity； and a terminal unit having three or more terminals physically being in contact with the patterns and being attached/detached to/from the sheet part, in which the terminals and the patterns may be formed such that at least one terminal physically comes in contact with each of the two or more patterns spaced apart from each other when the terminal unit is mounted on the sheet part, and a sensing module generating a sensing signal sensing the excretion and providing the sensing signal to the terminals being in contact with the patterns is provided in the terminal unit.
