Digital Electric PH Meter LCD Tester Hydroponics Aquarium Water Pocket Test Pen

$9.9 $13.39

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  • Estimated Delivery:Jun 05 - Jun 12

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Wide using for aquarium, pool, drinking,spas,hydroponics, food, wine,beer making and more. Accuracy:+/-0.01pH. 3: Press the "CAL" button. Wait until the display digital is 6.86pH and steady. 5: Press the "CAL" button.

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