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Amdohai Pen-type pH Meter Temperature pH Test Pen with Automatic Temparature Compensation Function Digital LCD pH Tester High Accuracy Water Quality Detector | Walmart Canada
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SMART SENSOR Professional pH Water Quality Tester High Portable Pen Type pH Meter Acidometer for Aquarium Acidimeter pH Tester Measure Household Drinking Solution with ATC Auto Temperature Compensat - Walmart.com
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AMTAST Portable Pen Type pH Meter for Skin Fruits Surface Flat Pen pH Tester with Temperature Display, No Need Calibration, Range 0.00~14.00, Temperature: 0~60°C: Amazon.com: Industrial & Scientific
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PHTK-150 Digital Pentype pH Meter Temperature Tester °C °F with Replaceable Electrode - Tekcoplus Ltd.
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