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HORIBA LAQUAtwin EC-11 Compact Conductivity Meter Range 0-19.99 mS/cm: Amazon.com: Industrial & Scientific
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Horiba LAQUAtwin Conductivity Meter with 3 calibration points and temperature measurement (EC-22) - Pocket Tester Shop
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HORIBA LAQUAtwin EC-33 Compact Conductivity/TDS Meter Range 0-199.9 mS/cm: Amazon.com: Industrial & Scientific
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Horiba LAQUAtwin Conductivity Meter with 3 calibration points and temperature measurement (EC-22) - Pocket Tester Shop
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HORIBA LAQUAtwin pH-11 Pocket pH Meter Small Sample Amount min. 0.1mL for Soil, hydroponic, lab, Water, Aquarium, Food, Wine, Beer, Chemical: Amazon.com: Industrial & Scientific
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