HM Digital, Inc.

Model TDS-3 - Handheld Meter With Carrying Case

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Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket or toolbox at all times!

  • Ideal for commercial use. Includes a carrying case with belt clip.
  • 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.
  • Built-in digital thermometer
  • Display: large and easy-to-read LCD screen.
  • Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
  • Also available in 'x10' mode: reads in increments only of 10 ppm (0-9990 ppm).

  • TDS Range: 0 - 9990 ppm (mg/L)
  • Temp. Range: 0 - 80 degrees Celsius
  • Resolution: 1 ppm, 1 degree Celsius (also available in 10 ppm)
  • 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: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches)
  • Weight with case: 76.5g (2.7 oz)
  • Weight without case: 56.7g (2 oz)

Customer reviews

  1. By Rob Samborn on

    This is the genuine product. All others are fake.