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HM Digital AP-1 AquaPro Water Quality Tester (TDS)

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HM Digital AP-1 AquaPro Water Quality Tester (TDS)

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SG$  58.00  49.95  
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Stock: Stock available

Brand: HM Digital
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HM Digital AP-1
AquaPro Water Quality Tester (TDS) and Temperature

Quality Product ~ Designed in USA and Korea


Know when to change your water filter

Measure and Monitor Total Dissolved Solids (TDS) levels for

  • Drinking Water
  • Water Filters
  • Hydropoinics
  • Aquariums
  • Food &Coffee
  • Pools & Spas
  • Colloidal Solver

The United States EPA's Maximum Contaminant Level for Total Dissolver Solids (TDS) for human consumption is 500ppm.

HM Digital introduces its new AquaPro series, a line of handheld TDS/EC meters with a sleek design that's perfect for today's modern kitchen. The AquaPro digital water testers are the next generation for today's tech-savvy and health-conscience consumer.


  • 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.


  • 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)

Standards Certification:

  • CE