Extech Dissolved Oxygen Meter View larger

Extech Dissolved Oxygen Meter


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Extech Waterproof ExStik II Dissolved Oxygen Meter (DO600)

Includes DO600 meter, DO603 membrane kit, 16ft (5m) extension cable, weighted probe guard, and hard carying case — $125 savings. Ideal for compost tea makers.

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Waterproof ExStik® II Dissolved Oxygen Meter - Easy to replace screw on membrane cap with optional extension cables. Allows you to measure Dissolved Oxygen in laboratories or out in the field with a 16ft (5m) extension cable and probe weight guard for taking easy measurements in tanks or streams. Ideal for measuring water, soil solutions and especially of interest to people making compost tea.


  • 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
  • Waterproof to IP57

DO600 meter includes DO electrode, protective sensor cap, spare membrane cap, electrolyte, four 3V CR-2032 batteries, and 48" (1.2m) neckstrap.