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Portable Digital Meter TDS Tester Pen Water Quality Analysis instrument Meter for Drinking water - AliExpress
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INKBIRD Water TDS Meter 3 in 1 Digital Water Quality Tester (TDS, EC & Temp), Data Lock Function, Instant Reading with High Accuracy, for Drinking Water, Aquariums, Swimming Pool, Hydroponic Setups: Amazon.com:
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Amazon.com: TDS Meter, 6 in1 PH EC SG Salt Temperature WiFi APP Alarm 0-19990ppm Water Quality Tester, 0-199.9ppt 32-122°F Electronic Water Tester for Drinking Water, Well, Swimming Pool, Aquarium, RO(US 110V) :
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REED Instruments - Conductivity, pH & TDS Meters & Testers; Type: Data Logging Conductivity/TDS/Salinity Meter; Minimum pH Range: 0.00; Probe Type: Single Junction; Maximum pH Range: 0.00; Minimum Ph Range: 0.00; Maximum
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