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Thermo Scientific Orion Star RDO Series Optical Dissolved Oxygen Meters

Choose from three portable meter versions to meet your specific requirement

 3-Star RDO Portable Meter  4-Star pH/RDO Portable Meter  5-Star pH/RDO/Conductivity Portable Meter 
  • Dissolved oxygen and temperature measurement capabilities
  • Data storage for 1000 data sets with time and date stamping
  • Temperature capability
 
  
  • Dissolved oxygen, pH and temperature measurement capabilities
  • pH calibration of up to 5 points with calibration alarm and automatic buffer recognition of USA, NIST and DIN buffers
  • Temperature calibration capability
  • Data storage for 750 data sets with time and date stamping
  
  • Dissolved oxygen, pH, conductivity, salinity, TDS, resistivity and temperature measurement capabilities
  • Conductivity/TDS/salinity/resistivity calibration of up to 5 points and reading reference temperatures of 5 ºC, 10 ºC,15 ºC, 20ºCc 25ºC
  • Automatic salinity correction for dissolved oxygen measurements from the conductivity probe reading
  • Temperature calibration capability
  • Data storage for 500 data sets with time and date stamping

   

All RDO Meters feature:
 RDO Meter Enlarged
  • Dissolved oxygen level measurements using optical DO technology
  • No membranes to change - once-a-year cap replacement
  • Calibrate for dissolved oxygen using water-saturated air, air-saturated water, zero point, or at a custom point with Winkler titration
  • Built-in barometer for automatic pressure correcting with option for manual correction for dissolved oxygen readings
  • RS232 port for easy data downloading and software updates
  • Simultaneous display of measured values on the backlit display
  • IP67-rated housing
  • Four AA batteries to provide over 1000 hours of operation in Auto-Read™ mode
  • 3-year warranty on meter and RDO probe body
  • 1-year warranty on RDO sensor cap