Extech ExStik II Dissolved Oxygen Meter

Extech ExStik II Dissolved Oxygen Meter


The Extech ExStik II Dissolved Oxygen Meter measures oxygen levels as % saturation from 0 to 200.0% or concentration from 0 to 20.00ppm (mg/L).


  • Adjustable salinity compensation from 0 to 50ppt
  • Memory stores up to 25 data sets with DO and temperature reading
  • Self calibration on power up
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The Extech ExStick II Dissolved Oxygen Meter displays oxygen levels as % saturation from 0 to 200.0% or concentration from 0 to 20.00ppm (mg/L). The memory stores up to 25 data sets with dissolved oxygen and temperature readings. The altitute compensation is adjustable from 0 to 20,000 feet in 1,000 feet increments, and the salinity compensation is adjustable from 0 to 50ppt. The analog bargraph displayed on the LCD indicates sample trends. Other meter functions included data hold, automatic power off, and low battery indicator. 

Notable Specifications:
  • Dissolved oxygen (saturation mode) range: 0 to 200.0%
  • Dissolved oxygen (saturation mode) resolution: 0.1%
  • Dissolved oxygen (saturation mode) accuracy: ±2% FS
  • Dissolved oxygen (concentration mode) range: 0 to 20.00ppm (mg/L)
  • Dissolved oxygen (concentration mode) resolution: 0.01ppm (mg/L)
  • Dissolved oxygen (concentration mode) basic accuracy: 0.4ppm (mg/L)
  • Temperature range: 32 to 122°F (0 to 50°C)
  • Temperature resolution: 0.1°F/°C 
  • Temperature basic accuracy: ±1.8°F (1°C)
  • Dimensions: 1.4x6.9x1.6" (36x176x41mm)
  • Weight: 3.8oz (110g)
What's Included:
  • (1) ExStik meter
  • (1) Dissolved oxygen electrode
  • (1) Protective sensor cap
  • (1) Spare membrane cap with electrolyte
  • (4) 3V CR-2023 batteries
  • (1) 48" neckstrap
Image Part # Product Description Price Stock Order
Extech ExStik II Dissolved Oxygen Meter DO600 ExStik II dissolved oxygen meter
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Extech ExStik II Dissolved Oxygen Meter DO600-K ExStik II dissolved oxygen meter, membrane kit, 5m extension cable, probe guard, and carying case
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Image Part # Product Description Price Stock Order
Extech ExStik Replacement Dissolved Oxygen Electrode DO605 ExStik replacement dissolved oxygen electrode for ExStick dissolved oxygen meter
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Extech Membrane Cap Kit for ExStik DO Meter DO603 Membrane kit for ExStik dissolved oxygen meter
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Extech Weighted Base and Solution Cups Kit EX006 Weighted base & disposable solution cups with caps, 5 pack
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Extech Spare Sample Solution Cups EX007 Spare sample solution cups, 24 pack
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Extech ExStik Extension Cable with Probe Guard/Weight EX010 ExStik extension cable with probe guard/weight, 1m
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Extech ExStik Extension Cable EX050 ExStik extension cable with probe guard/weight, 5m
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Extech Small Vinyl Carrying Case with Belt Loop CA895 Small vinyl carrying case with belt loop, ExStik series meters
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Questions & Answers

| Ask a Question
How is oxygen level displayed?
Oxygen Level can be displayed as % Saturation from 0 to 200% or Concentration from 0 to 20ppm (mg/L)
Do I need to calibrate my meter?
No, the meter self calibrates on power up.

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