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ph level tester
Selling leads
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... into the water/solution up to the maximum measuring level. 4. Wait until the display stabilizes, the TDS meter automatically compensates ...
2024-12-09 18:48:25
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... at the water level of the meter. 2 When the value is stable after 1-5 seconds, press the "HOLD" button to lock the value and take out the test pen ...
2024-12-09 18:48:25
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