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Exstik® II Conductivity / TDS / Salinity Meter

Article No. 15336

EC500 Cond/pH/TDS Meter

The Extech ExStik II EC500 is a waterproof pH and conductivity meter. It measures conductivity, TDS, Salinity, pH and Temperature using one electrode.

$178.95 excl. taxes & shipping cost


  • Combination flat surface pH electrode with auto ranging high accuracy Conductivity cell
  • Measures 5 parameters including Conductivity, TDS, Salinity, pH, and Temperature using one electrode
  • 9 units of measure: pH, µS/cm, mS/cm, ppm, ppt, mg/L, g/L, °C,°F
  • Analog bargraph indicates trends
  • Memory stores up to 25 labeled readings
  • Adjustable Conductivity to TDS ratio from 0.4 to 1.0; 0.5 fixed Salinity ratio
  • RENEW feature alerts user when electrode needs replacement
  • Auto power off and low battery indicator
  • Waterproof to IP57
  • Order Conductivity standards and pH buffers separately

Technical Attributes

  • Data
    Measurement:RangesMax. ResolutionBasic Accuracy
    Conductivity:0 to 199.9 µS/cm
    200 to 1999 µS/cm
    2.0 to 19.99 mS/cm
    0.1 µS/cm±2% FS
    TDS/Salinty:0 to 99.9 ppm (mg/L)
    100 to 999 ppm (mg/L)
    1.0 to 9.99 ppt (g/L)
    0.1 ppm (mg/L)±2% FS
    pH:0.00-14.00 pH0.1 pH±0.01 pH
    Temperature:32° to 149°F (0 to 65°C)0.1 °F/°C±1.8°F/1°C
    Memory:25 datasets
    Dimensions:1.4 x 7.3 x1.6" (36 x 186 x 41mm)
    Weight:3.8oz (110g)
    Calibration:1 point; 2 point; 3 point

Delivery Content

Complete with meter and electrode, protective cap, sample cup, four 3V CR-2032 batteries, 48" (1.2m) neck strap, polishing paper, and instructions

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