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Apera Instruments TDS Tester Kit w/ Auto Calibration - TDS20 | IP67

Tester is packed in carry case with calibration solution




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The Apera Instruments TDS20 Value Pocket TDS Tester is simply the most reliable pocket conductivity ppm tester/meter 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./TDS 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 an out-of-range warning and incorrect calibration reminders.
  • IP67 Water-proof and dust-proof, floats on water so no need to worry if you drop it in the water by accident.
  • 200 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).


  • Model: TDS20
  • Measure: TDS ºC
    • Range:
      • 0 - 100.0ppm
      • 0 - 1000ppm
      • 0 - 10.00ppt
    • Resolution: 0.1/1ppm;0.01ppt; 0.1ºC
    • Accuracy: ±1% F.S
    • ATC: 0 to 50 °C (32 to 122°F)
    • Calibration: Automatic 1 to 2 points
  • Measure: Temperature
    • Range: 0 to 50°C (32 to 122°F)
    • Resolution: 0.1°C
    • Accuracy: ±0.5°C
  • LCD: 180° Viewing Angle LCD
  • Stable Reading Indication: Smiley Face icon
  • Low-Battery Warning: Battery icon flashing, reminder of battery replacement
  • Self-Diagnosis: Yes
  • Heads-Up Function: No
  • Auto. Power-Off: Yes, auto power-off in 8 minutes without operation
  • Waterproof Rating: IP67; Floatable
  • Power: DC3V, AAA batteries*4
  • Battery Life: Continuous operation up to 1000 hours
  • Dimensions& Weight: Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g

In The Box

  • [1] x Apera Instruments TDS Tester Kit w/ Auto Calibration - TDS20 | IP67

2-Year Replacement

  • Warranty If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.