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HM Digital TDS-3 Handheld TDS Meter with Carrying Case with 0 – 9990 ppm (mg/L) Range and +/- 2% Accuracy
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TDS Meter Water Testing Kits for Drinking Water, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990 ppm LCD Display, Funayama TDS Meter for Drinking Water, Swinging Pool, Aquariums etc:
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