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pH Meter for Water, Digital pH Meter, pH Tester 0.01 pH High Accuracy Water Quality Tester with 0-14 pH Measurement Range,for Household Drinking,Water Hydroponics,Swimming Pool,Aquarium,Spa(Blue): Amazon.com: Industrial & Scientific
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Steinberg Systems SBS-PH-100 Testeur pH pH-mètre électronique Testeur pH électronique (Affichage de deux valeurs : pH et température, Capteur de haute précision, Calibrage à 3 points) : Amazon.fr: Commerce, Industrie et Science
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Apera Instruments Premium Series PH8500-DP Portable pH Meter Kit for Dairy Products and Liquid Food, Blue (AI5552): Amazon.com: Industrial & Scientific
