LIQUID DETECTION SENSOR

摘要

In order to reliably detect liquid leakage and to detect a normal state and an error state relating to an installation state, this liquid detection sensor is provided with: an insulating sheet (4) which exhibits conductivity in the presence of a liquid; multiple electrode members (5) (electrode members (5a, 5b) which have conductivity and adhesiveness, which are provided in a state of contact with one surface of the insulating sheet (4) by means of said adhesiveness, and which are electrically isolated from each other; and a resistance member (8) which is connected so as to link together the electrode members (5). The resistance member (8) has a resistance value greater than the resistance value when the insulating sheet (4) exhibits conductivity, and has a resistance value smaller than the resistance value when the connection between the electrode members (5) by the resistance member (8) is broken.