| 摘要 |
PROBLEM TO BE SOLVED: To provide a residual chlorine meter having dirt resistance, high stability or the like. SOLUTION: In this residual chlorine meter equipped with a measuring means for measuring the residual chlorine concentration by using electrodes, the measuring means has a pair of electrodes 10, 20, and one electrode 10 between the pair of electrodes is formed by using porous material, and the other electrode 20 between the pair of electrodes is formed by using metal material. One electrode 10 is formed by using carbon fibers which is the porous material, and beads 31 as a washing means are provided on the periphery of the other electrode 20. |
