EC20 Value Pocket Conductivity Tester


APERA Instruments EC20 Value Pocket Conductivity Tester

Simply the most reliable pocket conductivity tester with the best value for all kinds of routine testing, including tap water/drinking water testing, agriculture, aquaculture, swimming pool, education, etc.

  • The unique platinum black conductivity probe technology ensures wide range measurement with accuracy and consistency.
  • An ultra clear 180˚ viewing angle screen with temp./EC value dual display and indications of completed auto calibrations and stable readings.
  • Complete kit with calibration solutions (1413 µs and 12.88 mS), AAA batteries, and a lanyard all in a rugged carrying case.
  • 1-2 points auto calibration and 0 to 50˚C auto temp. compensation, ±1% F.S accuracy with 0 to 20.00 mS/cm wide conductivity measuring range
  • Self-diagnosis with out-of -range warning and incorrect calibration warning.
  • IP67 Water-proof and dust-proof, floats on water so no need to worry if you drop it in the water by accident.
  • Up to 1000 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).


Conductivity Measuring Range

0 to 200.0 μS/cm
0 to 2000
0 to 20.00 mS/cm

Conductivity Resolution

0.1/1 μS/cm, 0.01 mS/cm

Conductivity Accuracy

±1 % F.S


Automatic 1- to 2-Point-Calibration

Temperature compensation

0 to 50 °C (automatic)

Temperature-Measuring Range

0 to 50 °C

Temperature- Resolution

0.1 °C


±0.5 °C

Power Supply

4 × AAA Batteries

Battery Life

Up to 1000 hrs

IP Rating

IP67 (waterproof and floatable)


40×31×178 mm
(with carrying case 190×165×40 mm)


107 g (with carrying case 438 g)


  • EC 20 Tester
  • Calibration solutions (1413 μS/cm; 12.88 mS/cm / 50 ml)
  • Lanyard
  • Carrying case

Manual English (EC20_EN_2018.pdf, 1,112 Kb) [Download]

Deutsch (EC20_DE_2018.pdf, 881 Kb) [Download]