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CT-6022 PH Meter 0-14 PH Measurement Range PH 0.01 High Precision Water Quality Tester PH Meter Pen Suitable for Aquarium
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Wholesale Waterproof CT 6022/CT 6023 Digital PH Tester Pen Type Water PH Value Test Meter Portable PH Tester Monitor Detector 0.00 14.00pH From Measuringtools, $31.01 | DHgate.Com
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