Misuratore di PH Alta Precisione Tester Valore PH Serbatoio Pesci Test Qualità Acqua

Blinking status and 4.00 is always on, use the probe to insert the probe into the solution of 6.86PH The probe is inserted into the solution of 9.18PH. The probe is inserted into a pH 4.0 solution, and when the sensor's signal stabilizes, the LCD displays a P.

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