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The Hanna Marine Calcium Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit
ApexEL or Apex Jr
If you ever notice the temperature starts to drift or not hold a calibration it is usually a good sign that the probe needs to be replaced
It uses cation and anion single bed resins that give you added control and cost savings over traditionally used mixed bed resins
Replaceable Temperature Probe Length - 72"
Powder Blue Tang - VS ro filter media The Hanna Marine Calcium Checker®Powder Blue Tang VS
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