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Home>Water Filter Brands>HM Digital Testing Products > HM-DIGITAL-TDS-3


HM Digital TDS-3 Total Dissolved Solids Handheld Meter with Carrying Case

6.1" H x 1.25" W x 1" D; 0-9990 S

HM Digital Commercial TDS Handheld Meter with Built-in Digital Thermometer TDS-3
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Product Code: HM-DIGITAL-TDS-3
Retail Price: $37.00
  • HM Digital TDS-3 Total Dissolved Solids Handheld Meter with Carrying Case and Built-in Digital Thermometer:
  • The TDS Handheld Meter is ideal for commercial use.
  • This Handheld Meter is useful for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver.
  • The TDS-3 includes a carrying case with belt clip.
  • The TDS-3 Handheld Meter is highly efficient and accurate due to its advanced microprocessor technology.
  • Hold Function: Saves measurements for convenient reading and recording.
  • Auto-off function: The meter shuts off automatically after 10 minutes of non-use to conserve batteries.
  • Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image.
  • The TDS-3 Handheld Meter has a built-in digital thermometer.
  • Display: Large and easy-to-read LCD screen.
  • Factory Calibrated: The TDS-3 calibrated with a 342 ppm NaCl solution, and it can be recalibrated with a mini-screwdriver.
  • HM Digital TDS-3 Handheld Meter with Hold Function:
  • Total Dissolved Solids Range: 0 - 9990 ppm (mg/L).
  • Temperature Range: 0 - 80 degrees Celsius.
  • Resolution: 1 ppm, 1 degree Celsius.
  • Accuracy: +/- 2%.
  • Conversion Factor: NaCl (avg. 0.5).
  • ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit).
  • Power Source: 2 x 1.5V button cell batteries (included) (357A).
  • Battery Life: 1000 hours of usage.
  • Dimensions: 6.1" H x 1.25" W x 1" D.
  • Weight with Case: 2.7 oz.
  • Weight without Case: 2 oz.
  • Manufacturer: HM Digital TDS-3

The TDS-3 is also known by the following part numbers:

  • TDS-3, TDS3
  • HM Digital TDS-3 Handheld Meter Manuals:

  • Taking TDS Measurements
  • Remove the protective cap.
  • Turn the TDS meter on. The ON/OFF switch is located on the panel.
  • Immerse the meter into the water/solution up to the maximum immersion level (2).
  • Lightly stir the meter to dislodge any air bubbles.
  • Wait until the display stabilizes. Once the reading stabilizes (approx. 10 seconds), press the HOLD button to view the reading out of the water.
  • If the meter displays a flashing x10 symbol, multiply the reading by 10.
  • After usage, shake off any excess water from your meter. Replace the cap.

  • Taking Temperature Measurements
  • Once the meter is on, the temperature function can be used at any time, in or out of liquid.
  • Press the TEMP button. The display will switch to temperature (in Celsius only).
  • To return to TDS mode, press the TEMP button.

  • Changing the Batteries
  • Remove the battery compartment.
  • Install new batteries (model 357A or L1154). Be sure that the batteries are properly aligned.
  • Replace the battery compartment. The meter will turn on automatically.
  • HM Digital TDS-3 Manual
    (Download Adobe Reader).

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