DO400F DO Meter



  • High resolution LCD display, 5.7 inches.
  • Multi-reading feature allows auto-read, timed-read and continuous-read.
  • Automatic/Manual temperature compensation ensures accurate results.
  • Auto-hold feature senses and locks the measurement endpoint.
  • Data Storage 500 sets (GLP-compliant).
  • Support for USB or RS-232 communication.
  • Reset feature automatically resumes all settings back to factory default options.
  • IP54 waterproof.
  • Support for air-saturated water or zero oxygen calibration.
  • Auto barometric pressure compensation
  • Manual Salinity Factor Correction
  • Selectable pressure unit, including kPa, mbar, Torr, Atm.


  • DO-958-Q polarographic DO electrode(zero oxygen calibration solution, dissolved oxygen electrolyte, 3 pcs electrode membrane cover)
  • REX-5 electrode stand



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DO400F DO Meter