HI 4421  Research Grade Dissolved Oxygen and BOD Meter

  • Extended DO range up to 90 ppm (mg/L) and 600%
  • Measures DO, atmospheric pressure and temperature
  • DO direct, DO direct/autohold, BOD: Biological Oxygen Demand, OUR: Oxygen Uptake Rate, SOUR: Specific Oxygen Uptake Rate
  • Temperature and atmospheric pressure automatic compensation
  • Manual salinity compensation
  • Fully customizable
  • Large log memory using different logging methods
  • Polarographic probe with built-in temperature sensor
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