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Catalina Spas

Pool Line Checker- TDS Tester

Regular price £91.80 GBP
Regular price Sale price £91.80 GBP
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This TDS Tester uses an amperometric graphite electrode for precise measurements since it does not oxidise. An amperometric measurement of EC/TDS is based on Ohm’s Law l + V/R, where R depends on the distance between two pins and their surface. The non-oxidizing graphite pins ensure an accurate surface for dependable results.

For calibration, simply submerge the electrode tip in the calibration solution and the meter will automatically calibrate.


  • Waterproof
  • Automatic temperature compensation (ATC)
  • Automatic one-point calibration
  • Measurement Stability Indicator
  • Temperature measurement

The manual can be found here.