• Extech DO600   Waterproof ExStik® II Dissolved Oxygen Meter

DO sensor with easy to replace screw-on membrane cap with optional extension cables

The ExStik® II DO600 meter displays Oxygen level as percent of Saturation from 0 to 200. 0 percent or Concentration from 0 to 20.00 ppm (mg/L). It features Adjustable Altitude Compensation (0 to 20,000 feet in 1,000 ft. increments), Adjustable Salinity Compensation from 0 to 50 ppt and an analog bargraph for indicating trends. DO600 meter includes a DO electrode, protective sensor cap, spare membrane cap, electrolyte, four 3V CR-2032 batteries, and 48" (1.2m) neck strap.


  • Oxygen level displayed as % Saturation or Concentration (mg/L [ppm])
  • Adjustable Altitude Compensation (0-20,000ft in 1,000ft increments)
  • Adjustable Salinity Compensation from 0 to 50ppt
  • Analog bargraph indicates trends
  • Memory stores up to 25 data sets with DO and Temperature reading
  • Self calibration on power up
  • Data Hold, Auto power off, Low battery indicator


Specifications                            Range
DO (saturation mode)              0 to 200.0%
DO (concentration mode)       0 to 20.00ppm (mg/L)
Temperature                             12 to 122°F (0 to 50°C)
Dimensions                               1.4x6.9x1.6" (36x176x41mm
Weight                                       3.8oz (110g)


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Extech DO600 Waterproof ExStik® II Dissolved Oxygen Meter