Water Sanitizers
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HM Digital
$39.99HM Digital ZT-2 Pocket TDS Tester Auto-off function. Large easy to read LCD. Factory Calibrated with a 342 ppm NaCl solution. Range: 0 – 999 ppm (mg/L). Resolution: 1 ppm (0-999 ppm). Accuracy: +/- 3%. EC-to-TDS Conversion Factor: NaCl (avg. 0.5)...$39.99