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Reddit mentions of HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy

Sentiment score: 2
Reddit mentions: 2

We found 2 Reddit mentions of HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy. Here are the top ones.

HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy
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    Features:
  • The DM-1 helps you to measure the tap water coming in vs the purified water going out of your water filtration system at any time
  • The In-Line Dual TDS Meter displays TDS levels of the feed water and product water with in and out electrode probes
  • This TDS Monitor is highly efficient and accurate due to its advanced microprocessor technology
  • Highly efficient and accurate due to its advanced microprocessor technology
  • Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use
  • Installs quickly and easily
Specs:
ColorBlue & White
Height3 Inches
Length1.9 Inches
Number of items1
Size0-9990 ppm; 1 ppm resolution (0-999), 10 ppm resolution (1000-9990)
Weight0.1 Pounds
Width0.8 Inches

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Found 2 comments on HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy:

u/kmkm31 · 3 pointsr/ReefTank

Just make sure you get the one with the DI. The replacement cartridges are pretty reasonable as well, and my lps sells them as well as amazon. I have heard nothing bad about that system. My TDS from the tap is 144, and is zero after that system.

Here is the TDS monitor for cheap:

https://www.amazon.com/gp/product/B001EHAZGW/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

And a float valve if you need one:

https://www.amazon.com/gp/product/B0113UJOOS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1