SKU: PCM-531-S
Azzota® Portable Conductivity/Salinity Meter (2020 Model)
Azzota® Portable Conductivity/Salinity Meter (2020 Model) Azzota® Portable Conductivity/Salinity Meter (2020 Model)

Professional portable conductivity meter, 5 points calibration, selectable seawater and practical salinity measurement modes, accuracy: 0.5% F.S


  • The professional portable conductivity meter is equipped with a backlit LCD display.
  • 1 to 5 points calibration with automatic recognition for conductivity standards.
  • Selectable cell constant (K=0.1/1/10), reference temperature (20/25°C), linear and pure water compensations, seawater and practical salinity measurement modes.
  • Automatic temperature compensation ensures accurate readings over the entire range.
  • Auto-Read function senses and locks the measurement endpoint.
  • Calibration due alarm prompts the user to calibrate the meter regularly.
  • The calibration report provides the date and calibration factor.
  • The battery indicator shows the remaining battery capacity.
  • Auto-Power Off effectively conserves battery life.
  • Setup menu allows setting the number of calibration points, stability criteria, temperature unit, date and time, etc.
  • Reset function automatically resumes all settings back to the factory defaults.
  • Expanded memory stores or recalls up to 500 data sets.
  • USB communication interface is easy to transfer data to the PC.
  • A multi-mode power scheme (batteries, power adapter, and USB port) ensures that using the meter smoothly.

Packing list

  1. PCM-531 meter
  2. CON-1 conductivity electrode (included)
  3. CON-0.1 and CON-10 conductivity electrode (option)
  4. TP-10K temperature probe
  5. Conductivity standards 84µS/cm, 1413µS/cm, 12.88mS/cm
  6. Carrying case






0.01~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm


±0.5% F.S


0.001, 0.01, 0.1, 1, automatic

   Calibration Points

1 to 5 points

   Calibration Solutions

10µS/cm, 84µS/cm, 1413µS/cm, 12.88mS/cm, 111.8mS/cm



0.00~80.00ppt, 0.00~42.00psu


±1% F.S



   Measurement Modes

Practical salinity (psu) or natural seawater (ppt)



0~105°C, 32~221°F


±0.5°C, ±0.9°F


0.1°C, 0.1°F

   Offset Calibration

1 point

   Calibration Range

Measured value ±10°C


   Temperature Compensation

0~100°C, 32~212°F, manual or automatic

   Temperature Coefficient


   Compensation Mode

Linear or pure water

   Cell Constant

K=0.1, 1, 10 or custom

   Reference Temperature

20°C or 25°C

   Stability Criteria

Low or high

   Calibration Due Alarm

1 to 31 days or off


Stores up to 500 data sets


USB communication interface


6-pin DIN


3.5" custom LCD


3×1.5V AA batteries or DC5V power adapter

   Battery Life

Approximately 150 hours (Turn off the backlit)

   Auto-Power Off

10, 20 or 30 minutes after last key pressed




11 oz