• TDS-meter TDS-3
    TDS-meter TDS-3 TDS-meter TDS-3

TDS-meter TDS-3

What meter to choose? Detailed info and video

Sold 500+

In relation to the newer white AP-1 and AP-2:  If your eyes are not that good, I recommend either TDS-3 or EC-3. They have larger digits in display, that can be seen in the video on this page, that also contains detailed info about the difference between ppm and MicroSiemens (µS) all along with a comparison between all handheld meters. Maybe you can see it - click the image for zoom.


  • Measures total dissolved solids (TDS) and temperature
  • Auto ON/OFF function
  • Press the HOLD button gives a beep and keeps the value in the display, even when you pull out the meter from the water.
  • Easy to read LCD screen. By pressing Temp the meter shows temperature
  • Factory calibrated with a 342 ppm NaCl solution. The meter can be recalibrated using a mini screwdriver together with a calibr. fluid


  • TDS Range: 0 – 9990 ppm (mg/L)
  • Temp. Range: 0 – 80 degrees Celsius
  • Resolution: 0-999: 1 ppm; 1000-9990: 10 ppm (indicated by a ‘x10’ icon)
  • Temperature Resolution: 0.1 degree Celsius (Celsius only)
  • Accuracy: +/- 2%
  • EC-to-TDS 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) (LR44 or equivalent)
  • 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)

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TDS-meter TDS-3

  • Hersteller HM
  • Artikelnr. TDS3
  • Lager 48
  • 25,00€

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