Hydrologic DM-2 Industrial Dual TDS Monitor

HydrologicSKU: HF-HLTDS

Sale price$75


Measure and control the TDS levels of water easily before and after RO unit with Hydrologic DM-2 Industrial Dual TDS Monitor. The highly accurate readings from the digital display screen help you identify when the RO system needs replacement. This digital device is perfect to use for commercial, industrial, and residential RO systems.

  • Auto On/Off - The device shuts down automatically after twenty seconds to save battery power.
  • Factory Calibrated: All the meters are calibrated with 342ppm NACL solution. It makes them ready to use. They can be re-calibrated using a small screwdriver.
  • State-of-the-Art Microprocessor Technology: It comes with highly advanced microprocessor technology. It shows TDS levels of product water and feeds water via in and out probes.
  • Large LCD Display: The dual TDS monitor has a big LCD display. It is easy to read and provides highly accurate TDS readings.

Measure the total dissolved solids before and after RO system with Hydrologic DM-2 Industrial Dual TDS Monitor. TDS is the total amount of inorganic elements – metals, salts, minerals dissolved in water. A low TDS level makes the water safe for drinking. This digital device also has quick and easy installation.

This small hand-held device is superior in performance and build. It comes with advanced microprocessor technology. Thus, it is highly accurate and reliable. DM-2 TDS monitor indicates when to change the reverse osmosis filters. This helps users save membranes in no time. The monitor consists of two probes to measure TDS for tap water (aka feed water) and purified (aka product water).

The dual TDC monitor has a dual range and 0-9990 ppm with a resolution of 1 ppm. It measures 1000 to 9990 ppm with 10 ppm resolution by a blinking image x10. It comes with a convenient hold feature that saves measurements for efficient reading and recording.

2 x AA batteries ensure the long life of the product. Protected cables prevent any interferences that can lead to incorrect readings. Digital calibration can be performed individually on every line. Its wide range of applications includes food processing, food processing, hydroponics, window washing, car washing, etc.

The device also has a robust and water-resistant casing. In addition to that, it includes a TDS sticker on the backside of the device. It offers information regarding TDS values.

The whole package comes with protected sensor cables, ½ inch inlet, a 3/8-inch outlet, a TDS monitor system, and quick-connect T-fittings. Try it today to keep an eye on the performance of the reverse osmosis membrane easily.


  • SKU/Model No.: HF-HLTDS

  • Weight: 0.77 lbs

  • Dimensions: 7.2 × 5.1 × 1.7 in

    Customer Reviews

    Based on 1 review
    Jeremy Royer

    Exactly as mentioned.

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