Handheld TDS Meter

Ideal for all water purification applications, aquaculture, hydroponics, suitable for both domestic or commercial use. This unit will allow you to test your water and know if your RO membrane requires replacing.


This meter is ideal for commercial or domestic use. It comes with velcro fastening carrying case with belt clip and is highly efficient and very accurate due to 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 save 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.

Display: large and easy-to-read LCD screen.

Factory Calibrated: Meters can be recalibrated with a mini-screwdriver.

Technical Specification:

  • Range: 0 - 9990 ppm (mg/L)
  • Resolution: 1 ppm (also available in 10 ppm)
  • Accuracy: +/- 2%
  • Power source: 2 x 1.5V button cell batteries (included)
  • Battery life: over 1000 hours of continuous use
  • Dimensions: 140 x 23 x 15mm
  • Weight with case: 32gr    

HM Digital TDS-3 Meter For Testing Water