ZT-2 TDS Meter by HM Digital
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HM Digital ZT-2 Basic TDS Tester



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The HM ZT-2 is a low-cost meter for measuring Total Dissolved Solids (TDS) in water. It's well suited for the monitoring of residential reverse osmosis sysems and other water purification equipment.


Tech Specs

  • Range: 0 - 999 ppm (mg/L)
  • Resolution: 1 ppm (0-999 ppm)
  • Accuracy: +/- 3%
  • EC-to-TDS Conversion Factor: NaCl (avg. 0.5)
  • Power source: 2 x 1.5V button cell batteries (included) (357A or equivalent)
  • Battery life: Approx. 1000 hours of usage
  • Dimensions: 14 x 2.3 x 1.5 cm (5.5 x 0.9 x 0.75 inches)
  • Meter weight: 31.2g (1.1 oz)

In the Box

  • 1 x TDS Meter