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Q: how to calibrate without the liquid

尋ねた TouTaver に 2019-11-20 08:21:20

BG551545547 You need liquid to calibrate but it is not stable once calibrated , my unit is faulty after 100 days . LCD doesn’t work on PH meter

2021-03-25 03:52:18 役に立つ (0)
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Q: How far can measure

尋ねた Chirattiphong Wave Promphithak に 2019-08-02 06:14:21

BG551545547 My unit is faulty after 100 days

2021-03-25 03:51:20 役に立つ (0)
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