Home > Products > Water Quality Tester > TDS / EC > HM Digital AP-2 AquaPro Water Quality Tester (EC)
HM Digital AP-2 AquaPro Water Quality Tester (EC)

4 Sold

  • NULL
  • NULL
  • NULL
  • NULL
  • NULL

HM Digital AP-2 AquaPro Water Quality Tester (EC)

Rating: 0 out of 100 - based on 0 review(s) | Write Review | Add to Compare
SG$  58.00  49.95  
Item details

Stock: Stock available

Brand: HM Digital
  Share This   Add To Facebook

HM Digital AP-2
AquaPro Water Quality Tester (EC) and Temperature

Quality Product ~ Designed in USA and Korea


Know when to change your water filter

Measure and Monitor Electrical Conductivity (EC) levels for

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

Use the AP-2 Meter to:

  • Check the performace of your water filter.
  • Be sure your drinking water is at the right conductivity level.
  • Check nutrient levels in water for plants and fish.
  • Measure EC levels for other applications.

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 electrical conductivity (EC) and temperature.
  • Automatic Temperature Compensation (ATC)
  • Water-resistant housing
  • Measurement Range: 0-9999 µS
  • 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 700 µS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
  • Includes a cap and batteries.
  • Includes a storage case.


  • EC Range: 0-9999 µ
  • Temperature Range: 0-80 °C; 32-176 °F
  • Resolution: 1 µS; Temp. resolution is 0.1 °C/F
  • Accuracy: +/- 2%
  • 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

Water Quality Guidelines: (Just for references only)

EC range (µS/cm) : 0 - 800
Usefulness of water

  • Good drinking water for humans (provided there is no organic pollution and not too much suspended clay material)
  • Generally good for irrigation, though above 300 µS/cm, some care must be taken, particularly with overhead sprinklers which may cause leaf scorch on some salt sensitive plants.
  • Suitable for all livestock

EC range (µS/cm) : 800 - 2,500
Usefulness of water

  • Can be consumed by humans although most would prefer water in the lower half of this range if available.
  • When used for irrigation, requires special management including suitable soils, good drainage and consideration of salt tolerance of plants.
  • Suitable for all livestock.

EC range (µS/cm) : 2,500 - 10,000Usefulness of water

  • Not recommended for human consumption, although water up to 3000 µS/cm could be drunk if nothing else was available.
  • Not normally suitable for irrigation, though water up to 6000 µS/cm can be used on very salt tolerant crops with special management techniques. Over 6000 µS/cm, occasional emergency irrigation may be possible with care, or if sufficient low salinity water is available, this could be mixed with the high salinity water to obtain an acceptable supply.
  • When used for drinking water by poultry and pigs, the salinity should be limited to about 6000 µS/cm. Most other stock can use water up to 10,000 µS/cm.
  • Water over 4000 µS/cm can cause shell cracking in laying hens.
  • High magnesium levels can cause stock health problems in this range. Analysis recommended.

EC range (µS/cm) : Over 10,000
Usefulness of water

  • Not suitable for human consumption or irrigation
  • Not suitable for pigs, poultry or any lactating animals. Beef cattle can use water up to 17,000 µS/cm and adult dry sheep can tolerate 23,000 µS/cm. However it is possible that waters below these EC levels could contain unacceptable concentrations of particular ions. Detailed chemical analysis should therefore be considered before using high salinity water for stock.
  • Water up to 50,000 µS/cm (the salinity of the sea), can be used to flush toilets provided corrosion in the cistern can be controlled.