Digital Water Purity Tester (TDS Meter)



Measure Total Dissolved Solids, an indicator of contaminants, with this reusable, battery-powered meter.
  • City Water Test Kit

  • Well Water Test Kit

Product Description:

A TDS Meter indicates the amount of Total Dissolved Solids (TDS) in a solution. Since dissolved ionized solids like salts and minerals contribute to the conductivity of a solution, a TDS meter measures the conductivity of the solution then converts that figure to an estimated TDS reading. TDS can serve as a general indicator of total organic and inorganic contaminants in a water sample. Maintaining proper TDS levels is particularly important for aquariums and fish ponds - TDS levels can change dramatically over time, with dire consequences for the health of resident fish. Gardens may also benefit from water with proper TDS levels. Consult your veterinarian or pet store for recommended TDS levels for aquariums and ponds.


•Measures total dissolved solids (TDS) and temperature.
•Automatic Temperature Compensation (ATC)
•Water-resistant housing
•Measurement Range: 0-5000 ppm
•Digital Calibration (push button)
•Auto-off function, data-hold function and low-battery indicator.
•Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
•Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
•Includes a cap and batteries.
•Comes in a retail-oriented package.


TDS Range: 0-5000 ppm (mg/L)
Temperature Range: 0-80 °C; 32-176 °F
Resolution: 1 ppm; Temp. resolution is 0.1 °C/F
Accuracy: +/- 2%
Conversion Factor: NaCl (avg. 0.5)
Calibration: Digital calibration by push button.
Housing: Water-resistant
Power source: 1 x 3V button cell (included) (model CR2032)
Dimensions: 15 x 2.8 x 1.3 cm (5.9 x 1.1 x .5 inches)
Weight: 42.5 g (1.5 oz)


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