digital ph meter tester pen for water, pre-calibrated, high accuracy ±0.01, 0–14 ph range, pocket size for drinking water, pool, aquarium & hydroponics (yellow) normal yellow 1

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Product photo of digital ph meter tester pen for water, pre-calibrated, high accuracy ±0.01, 0–14 ph range, pocket size for drinking water, pool, aquarium & hydroponics (yellow) normal yellow 1

PH tester usage related issues: When the PH meter is turned on in the air, the value jumps irregularly, which is a normal phenomenon. The value in the air cannot be used as a reference. When measuring the water with the PH meter, it needs to be stirred ge

$3.25

Next bid: $3.45

MSRP: $9.9967% off

Ends Aug 19 at 07:17 PM ET

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digital ph meter tester pen for water, pre-calibrated, high accuracy ±0.01, 0–14 ph range, pocket size for drinking water, pool, aquarium & hydroponics (yellow) normal yellow 1

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