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HM Digital DM-2: Commercial In-Line Dual TDS Meter

FM-2: Filter Monitor | SM-1: Single Line TDS Monitor | DM-1: Dual TDS Monitor
HM Digital DM-2: Commercial In-Line Dual TDS Meter

Install this inline TDS Meter on industrial systems such as car washes, window washing, manufacturing, and food processing.

  • Highly efficient and accurate due to its advanced microprocessor technology
  • Displays TDS levels of the Feed Water and Product Water with in & out electrode probes
  • Auto-Off function conserves battery power. The unit shuts off automatically after 20 seconds
  • Dual Range - Measures from 0-999 ppm, with a resolution of 1 ppm. From 1000 to 9990 ppm, the resolution is in 10 ppm increments, indicated by a blinking 'x10' image.
  • Factory calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver
  • Comes equipped with 1/4 inch John Guest Quick-Connect T-fittings as shown. Also available with 3/8" fittings
  • Installs quickly and easily

Range: 0-9990 ppm
Accuracy: ±2%
Conversion Factor: NaCl (avg. 0.5)
Cable Length: 46" (including sensor)
Calibration: Factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line, or simultaneously for both.
Power source: 2 x AA batteries (included)
Battery life: Approx. 12-18 months 
Size: 11.6 x 6.8 x1.8 cm (4.6 x 2.6 x .7in.)
Weight: 201.3 g (7.1 oz.)

Differences from the DM-1:
  • Designed for commercial/industrial applications
  • Stronger, water-resistant casing
  • Calibration can be done individually or simultaneously on each line
  • Improved design, including an extra large, easy-to-read LCD display
  • Longer, waterproof, shielded cables
  • Variable mounting bracket

  • These prices include delivery to the UK

    Please select a fitting size:

    With 1/4" fittings: £28.00 + vat (£33.60) each

    With 3/8" fittings: £30.64 + vat (£36.77) each

    With 1/2" fittings and 1/2" Stems to fit on 1/2" Hose: £36.17 + vat (£43.40) each

  • This product will be dispatched by Royal Mail 1st Class service. Quantities of 2 and over will be shipped by courier service.

    Order before 4pm for same day dispatch (weekdays only)

    Courier orders will be dispatched same day if ordered before 3pm (weekdays only)