Extech ExStik II DO/pH/Conductivity Kit

The Extech ExStik II DO/pH/Conductivity Kit measures dissolved oxygen, pH, conductivity, TDS, salinity and temperature.


  • Meters are IP57 waterproof
  • Memory stores up to 25 labeled readings
  • Self calibration on power up
Your Price $461.99
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The Extech ExStik II DO/pH/Conductivity Kit measures dissolved oxygen, pH, conductivity, TDS, salinity and temperature. The kit includes an EC500 pH/Conductivity ExStick meter with a combination high-accuracy, multi-ranging conductivity sensor and DO600 Dissolved Oxygen ExStik II meter with electrode, replacement membrane cap, and electrolyte.

The meters are waterproof to IP57 standards. This kit is ideal for water, wastewater, groundwater, aquaculture, and fisheries professionals.


  • Sample pH buffers - Single-use pouches for pH4, pH7, pH10, and rinse solution.
  • Weighted base with 2 cups and caps, four batteries, neckstrap for each meter, and carrying case.
  • TDS/salinity range: 0 to 99.9ppm (mg/L), 100 to 999ppm (mg/L) 1.0 to 9.99ppt (g/L)
  • pH range: 0.00 to 14.00pH
  • Dissolved oxygen (saturation mode) range: 0 to 200.0%
  • Dissolved oxygen (concentration mode) range: 0 to 20.00ppm (mg/L)
  • pH temperature range: 23 to 194°F (-5 to 90°C)
  • Conductivity temperature range: 23 to 194°F (-5 to 90°C)
  • Dissolved oxygen temperature range: 32 to 122°F (0 to 50°C)
  • Dissolved oxygen (concentration mode):  0 to 20.00ppm (mg/L)
  • Automatic temperature compensation: yes
  • Maximum resolution: DO600: 0.1%, 0.01ppm (mg/L), EC500: 0.1µS, 0.01ppm (mg/L)
  • Basic accuracy: DO600: ±2.0%FS, 0.4ppm (mg/L) ±1.8°F/1°C, EC500: ±2.0%FS, 0.01pH), ±1.8°F/1°C
  • Dimensions:  9.5 x 6.8 x 2.8” (241 x 173 x 71mm)
  • Weight: 1.56 lbs. (708g)
  • (1) EC500 pH/Conductivity ExStik II meter
  • (1) Multi-ranging Conductivity sensor
  • (1) DO600 Dissolved Oxygen ExStik II meter
  • (1) DO electrode
  • (1) Replacement membrane cap with electrolyte
  • (3) Conductivity standards
  • (1) pH 4.00 buffer pouch
  • (1) pH 7.00 buffer pouch
  • (1) pH 10.00 buffer pouch
  • (1) Rinse solution pouch
  • (1) Weighted base
  • (3) Plastic cups with caps
  • (4) 3V CR-2032 batteries
  • (2) Neckstraps
  • (1) Carrying case
Questions & Answers
What is the Temperature range for the DO meter?
The DO Meter has a temperature range of 32 to 122 F (0-50C)
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Extech ExStik II DO/pH/Conductivity Kit
ExStik II DO/pH/conductivity kit with EC500 meter, DO600 meter, and accessories
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