• Extech WQ530  Benchtop Water Quality Meter/Stirrer

Magnetic stirrer with DO, Conductivity, TDS, Salinity, pH, mV, and Temperature measurements

The WQ530 is a 8-in-1 meter capable of measuring dissolved oxygen, concentration/saturation, pH, ORP, conductivity, TDS, salinity, and temperature of liquids and semi-solids. The unit features a 30-, 60-, and 120-minute timer or continuous stirring, two or three point ph calibration, one point conductivity calibration, automatic Temperature Compensation, adjustable conductivity to TDS ratio, and manual salinity and altitude compensation. The WQ530 features a large backlit dual display, and the ability to store/recall 150 readings, as well as capture readings directly to a PC via the built-in USB interface. The WQ530 comes complete with pH glass electrode, conductivity cell, DO probe, Temperature probe, four membrane caps and DO internal fill solution (30 mL), pH calibration solutions (4 and 7 pH), conductivity calibration solutions (1413 µS and 12.88 mS), plastic burette, polishing paper, electrode clamp and rod, software and USB cable, AC adapter and stirrer, and user manual.



  • Built-in stirrer with 30, 60, and 120 minute timer or continuous operation
  • Large backlit dual LCD simultaneously displays measurement and temperature
  • 2 or 3 point pH calibration for better accuracy (4, 7, and 10pH)
  • Manual salinity (0-50ppt) and altitude (0-20k ft) compensation for DO measurements
  • One point Conductivity calibration - automatically recognizes 4 calibration solutions
  • Adjustable Conductivity to TDS ratio from 0.5 to 1.0
  • Automatic Temperature Compensation
  • Memory stores up to 150 readings
  • Complete with pH, conductivity, and DO probes, and calibration/fill solutions, temperature probe, electrode clamp and rod, software, USB cable, and AC adapter

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Extech WQ530 Benchtop Water Quality Meter/Stirrer