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Controllers & Monitors

Aquarium Supplies

Aquarium Controllers & Monitors

Aquarium controllers are a convenient way to keep an eye on the various water parameters in your aquarium. Monitors allow continuous readings of your aquarium’s pH, ORP, salinity and temperature. A controller is monitor, too, but it also includes an electrical outlet that can be used to turn on or off components.

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  1. Hanna Instruments Waterproof pH Tester with Replaceable Electrode w/ Accuracy ±0.1 pH

    Hanna Instruments Waterproof pH Tester with Replaceable Electrode

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    When HANNA instruments introduced its first version of the pHep (pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep`s ease-of-use in combination with its affordability made it possible...
    FROM ONLY
    $88.99
  2. Hanna Instruments Waterproof pH Tester with Replaceable Electrode w/ Accuracy ±0.1 pH

    Hanna Instruments Waterproof pH Tester with Replaceable Electrode w/ Accuracy ±0.1 pH

    When HANNA instruments introduced its first version of the pHep (pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep`s ease-of-use in combination with its affordability made it possible...
    ONLY
    $88.99

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