PROBLEM TO BE SOLVED: To provide an excretion sensor that is easier to use.SOLUTION: An excretion sensor 110 includes a first tank 10, a first pump 16 and a smell sensor 17. The first tank 10 includes: a first bottom part； a first suction port 12 provided higher than the first bottom part； and a first duct including a first inside opening and a first outside opening. The first inside opening is provided higher than the first bottom part and connects to a space above the first bottom part. The first pump 16 sends gas in the first tank 10 to the smell sensor 17 from the first outside opening.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】より使い易い排泄センサを提供する。【解決手段】排泄センサ１１０は、第１タンク１０、第１ポンプ１６及び臭いセンサ１７を含む。第１タンク１０は、第１底部と、第１底部よりも高い位置に設けられた第１吸気口１２と、第１内側開口部及び第１外側開口部を含む第１ダクトと、を含む。第１内側開口部は、第１底部よりも高い位置に設けられ第１底部の上方の空間に繋がる。第１ポンプ１６は、第１タンク１０の内部の気体を第１外側開口部から臭いセンサ１７に送る。【選択図】図１
