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ERICKHILL pH Meter, High Accuracy ±0.01 pH Tester with Calibration Solution & 0-14 pH Measure Range, Waterproof pH Pen with ATC & LCD Backlight for Drinking Water, Aquarium, Wine, Pool, Hydroponics: Amazon.com:
Stylo PH-mètre, 2 en 1 PH-mètre Mode d'étalonnage automatique ABS 0~50 ℃ Haute précision pour le ménage : Amazon.fr: Jardin
