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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. AquaticLife 1/2 Inch Probe Compression Fitting

    AquaticLife 1/2 Inch Probe Compression Fitting

    DESCRIPTION Probe compression fitting used to integrate into PVC plumbed filtration systems and sumps to create a watertight seal around an aquarium probe. GENERAL Rubber compression around probe creates watertight seal. ...
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    $6.66
  2. Digital Aquatics Temperature Probe for ReefKeeper Elite (Molex Connector)

    Digital Aquatics iTemp Temperature Probe for ReefKeeper Systems (Molex Connector)

    The Digital Aquatics temp probe is used with all Digital Aquatics controllers as well as modules. It currently comes in two styles, one with an RJ-11 connection and the other with a Molex connection. The different probe styles fun...
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    $24.99
  3. Elos Conductivity Probe COND-probe

    Elos Conductivity Probe COND-probe

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    The conductivity cells are plastic bodied cells with two parallel graphite electrodes. These cells feature wide measuring range, rugged design, low maintenance and easy cleaning ideal for universal application in on-line monitorin...
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    $159.99
  4. Digital Aquatics pH Probe w/ Calibration Packets

    Digital Aquatics pH Probe w/ Calibration Packets

    Wondering about the required pH level of a particular water creature?Aquarists, mostly reef enthusiasts, have one common concern: the perfect pH level. Keeping the pH level at the ideal point is crucial. Why? Because sudden chan...
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    $39.99
  5. Digital Aquatics Salinity Probe Calibration Solution

    Digital Aquatics Salinity Probe Calibration Solution

    Digital Aquatics Conductivity Probe Calibration Solution (53 mS)
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    $7.99
  6. Digital Aquatics pH Calibration Kit

    Digital Aquatics pH Calibration Kit

    Digital Aquatics pH Calibration Kit Included: 2 x 7.0 pH packets 2 x 10.0 pH packets
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    $19.49
  7. Digital Aquatics ORP Probe w/ Calibration Packets

    Digital Aquatics ORP Probe w/ Calibration Packets

    If you have a reef aquarium or if you have an aquarium setup that is stocked with very sensitive fish, you probably have come across the term ORP before. ORP stands for oxidation reduction potential. In layman's terms, ORP is a ...
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    $79.99
  8. Digital Aquatics Lifeguard Aquarium Monitor

    Digital Aquatics Lifeguard v2.0 Aquarium Monitor

    Not ready for a controller? Protect your tank with Lifeguard™ by Digital Aquatics.
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    $219.98
  9. Neptune Systems Lunar Simulator LED String - 3 LEDs

    Neptune Systems Lunar Simulator LED String - 3 LEDs

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    LSM Lunar LED String 3 LEDs *Use this string of LED in combination with your Apex system and Lunar Simulation Module (LSM) When you purchase the Apex Controller and Lunar Simulation Module you need to outfit it with a ...
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    $39.95
  10. Neptune Systems Lunar Simulator LED String - 5 LEDs

    Neptune Systems Lunar Simulator LED String - 5 LEDs

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    LSM Lunar LED String 5 LEDs *Use this string of LED in combination with your Apex system and Lunar Simulation Module (LSM) When you purchase the Apex Controller and Lunar Simulation Module you need to outfit it with a ...
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    $59.95

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