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Measurement of strongly acidic water in the vicinity of pH 2.7
On 2017-07-13 09:31:07
Suddenly the value became unstable around 6 months and 6 days and it became completely useless.
I am sorry to have washed it regularly and used it.
I bothered that I could use it for about 2 years without any problems.
I'm in trouble because the pH meter is quite fragile, is it quite difficult?
I use it everyday at this price, but I want at least about a year to have it.