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Extech EC500 Waterproof ExStik II pH/Conductivity Meter

Extech EC500 Waterproof ExStik II pH/Conductivity Meter
$135.99

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The Extech EC500 ExStik II is an all-in-one waterproof meter that measures pH, conductivity, TDS (total dissolved solids), and salinity in a single compact, pen-style design. Ideal for field testing in water treatment, aquaculture, laboratories, pools/spas, and environmental monitoring applications. This unit is sold as used surplus and may show cosmetic wear from prior use or storage, but remains a great value option for anyone needing a versatile, reliable water quality meter.

Features:

  • 4-in-1 functionality: pH, conductivity, TDS, and salinity
  • Waterproof housing (floats if dropped in water)
  • Replaceable pH sensor module
  • Large, easy-to-read LCD display
  • Auto power off to save battery
  • Compact, pocket-sized design

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