LEVEL DETECTOR AND LEVEL MONITORING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a level detector and level monitoring system capable of detecting the water level or the like of a river in detail with a sensor without consuming electric power.SOLUTION: The level detector 10 includes: a support body 12; a plurality of environmental power generation elements 11 that are arranged on the support body 12 and convert non-electric energy latent in the environment into electric energy; and an electronic circuit unit 14 for detecting the position of the boundary of a detection object on the basis of the output from each of the plurality of environmental power generation elements 11. As the environmental power generation elements 11, thermoelectric conversion elements can be used, for example.