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Lowest price we've seen: $14.00 on Nov 11 at Amazon. Tracked across 5 stores since Nov 11.
HM Digital TDS-EZ digital water tester measures total dissolved solids (TDS) to help monitor water quality in drinking water, aquariums, aquaculture, and hydroponic systems. This digital water tester has a 0-9990 ppm measurement range for checking dissolved solids in water. Its microprocessor supports efficient, consistent readings, while the LCD display makes results easy to view. The hold function keeps the current reading on screen, and the auto-off function helps conserve battery power when the meter is not in use. The unit is factory calibrated with a 342 ppm solution and can be recalibrated with a mini screwdriver when needed. Compact and simple to operate, this TDS meter digital water tester is suitable for routine water testing at home or in system maintenance. Whether checking drinking water or monitoring RO and DI systems, the water quality tester provides a convenient way to measure TDS. HM Digital provides a practical solution for everyday water testing needs.