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HM DM-1 In-Line Dual TDS Monitor 10-Pack


HM DM-1 In-Line Dual TDS Monitor 10-Pack
Only $30.99 per filter
$30.99 /ea
Retail: $42.00 /ea
You Save: 26%
As low as
Retail: $42.00
You Save: 26%

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Product Information

The HM DM-1 In-Line Dual TDS Monitor allows you to measure the tap water going into your filteration system versus the filtered water coming out of your system at any time. Stop guessing the performance of your filtration system with the DM1!

The DM-1 Dual TDS Monitor is the perfect monitor for any water purification system:

Spot Check Your Water Filter Any Time!

Know When Your Reverse Osmosis System Needs Service!

Know When Its Time To Change Your Filter!

The DM1 Features:

  • High Effeciency and Accuracy due to Advanced Microprocessor Technology
  • TDS Level Display of Feed Water and Product Water
  • Auto-Off Function to conserve Battery Power
  • Factory Callibration (recalibration with a mini-screwdriver)
  • John Guest Quick Connect T-Fittings
  • Quick and Easy Installation

DM-1 Specifications:

  • Range: 0-9990 ppm
  • Accuracy: plus or minus 2%
  • Cable Length: 24.5" (including sensor)
  • Fittings: 1/4" John Guest Push Fit
  • Power Source: 2 x 1.5V Button Cell Batteries (included)
  • Battery Life: Approximately 1000 Hours of continuous use
  • Size: 3" x .8" x 1.9"

Protect your investment and purchase the DM-1 TDS Monitor for your Reverse Osmosis or Water Purification System today!


Price is for a 10-Pack of replacements


HM DM-1 In-Line Dual TDS Monitor 10-Pack Product Reviews :

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" Thanks for the fast service. All items were included in the order and arrived in good condition. " - Tom, Temperance, MI
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