Capacity type liquid state detecting sensor

摘要

An electrostatic capacity type liquid state detecting sensor (1) includes an outer tubular electrode (10), and an inner electrode (20) disposed within the outer tubular electrode (10) and having an insulation layer (23) at an outer surface portion to be brought into contact with liquid contained in a container for detection of a state of the liquid, wherein the thickness of the insulation layer (23) is less than 500 mu m and not less than 100 mu m.