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HM Digital TDS-3 Handheld TDS Water Meter With Carrying Case
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Hand held TSd Meter for testing water conductivity.
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Amazon.com: HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy : Industrial & Scientific
HM Digital TDS-3 TDS Handheld Meter
