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High quality TDS Pen, perfect for use when remineralising RO/DI water.

Hold function: Saves measurements for convenient reading and recording
Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries
Dual Range: Measures form 0-999ppm, with a resolution of 1ppm. From 1,000 to 9,990ppm, the resolution is 10ppm, indicated by drinking x10image, Factory calibrated
Range: 0-9990ppm
Accuracy: +/-2%
Battery: 2 x 1.5V Button Cell battery
Item size:156mm x 30mm x 20mm(6.1 x1.2 x0.9in)
Net weight:49g

Package Includes:

1 x TDS Meter Tester
1 x Manual
1 x Case


  • It will display only three digits. When the measured results is more than 999ppm, the screen display will be "xxx *10". For example, “2000” will appear as “200*10” in the screen.
  • Do not drop the entire TDS meter in water of dip beyond the maximum immersion level. This unit is not water-tight and is not covered under the warranty if water enters the unit.
  • Meter is not able to be re-calibrated

1 Review Hide Reviews Show Reviews

  • 5
    Great product

    Posted by Jerricka Museler on 24th Apr 2020

    Easy to use and does the job