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MEKBOK Hydroponics pH Meter Digital PH Test Pen 0.01 high-Precision Thermometer, Measuring Instrument and Thermometer, Suitable for hydroponics, Home Drinking and Aquarium: Amazon.com: Industrial & Scientific
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Digital PH Meter Tester Water Wine Urine Monitor accuracy 0.01 automatic calibration ph 0-14 temp 0-80 ℃ For Aquarium Pool water
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Digital PH Meter Tester Water Wine Urine Monitor accuracy 0.01 automatic calibration ph 0-14 temp 0-80 ℃ For Aquarium Pool water
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MEKBOK Hydroponics pH Meter Digital PH Test Pen 0.01 high-Precision Thermometer, Measuring Instrument and Thermometer, Suitable for hydroponics, Home Drinking and Aquarium: Amazon.com: Industrial & Scientific
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