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HM Digital SAL-1700 Professional Salinity and Temperature Meter

HM Digital SAL-1700 Professional Salinity and Temperature MeterWe had an HM Digital engineer stop b..
$99.99 $69.99

Deluxe Dual In-Line TDS Meter DM-2 by HM Digital

Deluxe Dual In-Line TDS Meter DM-2 by HM Digital Finally an accurate easy to use and easy to re..
$59.95 $39.95

Single Inline TDS meter SM-1 - HM Digital

The SM-1 Single Inline TDS Meter from HM Digital measures the TDS of a single water line. This is a ..
$29.99 $24.99

Triple Inline TDS Meter TRM-1 - HM Digital

If you have a single or dual DI stage we highly recommend a triple TDS meter as it will allow you to..
$49.99 $44.99
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