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Controllers & Monitors

Controllers & Monitors

We carry a wide range of aquarium controllers & monitors from American Marine, BioTek Marine, Hanna Instruments, Apogee Instruments, Neptune Systems, Tunze, Hydros & more. If you need help selecting the right product for your budget and needs then please call or email us.

First Time Customers Use Coupon Code: WELCOMEExtra 10% With Account Checkout to Save 10%
15% Off Hanna Instruments & 20% Off ATI Straton LED Lights.

Items 37-72 of 316

Set Descending Direction
  1. Neptune Systems 30' AquaBus Extension Cable (M/F)

    Neptune Systems 30' AquaBus Extension Cable (M/F)

    $32.95
    This product will be back ordered
    Add to Wish List
  2. Neptune Systems MXM Module

    Neptune Systems MXM Module

    $119.95
    This product will be back ordered
    Add to Wish List
  3. Milwaukee MA991B/1 Glass PH Replacement Probe

    Milwaukee MA991B/1 Glass PH Replacement Probe

    $44.00
    Out Of Stock
    Add to Wish List
  4. HYDROS Klir Drive Port Adapter

    HYDROS Klir Drive Port Adapter

    $13.99
    Ships in 1-2 Days
    Add to Wish List
  5. GHL Industrial Line Basic housing and Blanking Panel

    GHL Industrial Line Basic housing and Blanking Panel

    Starting at: $19.90
    See Individual Item
    Add to Wish List
  6. Biotek Marine IntelliCradle - Universal

    Biotek Marine IntelliCradle - Universal

    $34.99
    This product will be back ordered
    Add to Wish List
  7. HYDROS Klir Roller Mat Adapter Kit

    HYDROS Klir Roller Mat Adapter Kit

    $53.98
    Ships in 1-2 Days
    Add to Wish List
  8. HYDROS Float Switch Sensor with Magnetic Mount

    HYDROS Float Switch Sensor with Magnetic Mount

    $29.99
    Ships in 1-2 Days
    Add to Wish List
  9. Dymax CO2 Three-Way Splitter

    Dymax CO2 Three-Way Splitter

    $37.99
    See Individual Item
    Add to Wish List
  10. Dymax Crystal CO2 Indicator

    Dymax Crystal CO2 Indicator

    Starting at: $13.99
    See Individual Item
    Add to Wish List
  11. HYDROS Controller Board LED Sign - Black

    HYDROS Controller Board LED Sign - Black

    $114.99
    Ships in 1-2 Days
    Add to Wish List
  12. HYDROS Salinity Kit

    HYDROS Salinity Kit

    $119.99
    Temporarily Out Of Stock
    Add to Wish List
  13. HYDROS 9in USB LED Sign

    HYDROS 9in USB LED Sign

    $64.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  14. HYDROS 2mL/min Dosing Pump

    HYDROS 2mL/min Dosing Pump

    $74.99
    Ships in 1-2 Days
    Add to Wish List
  15. HYDROS iV Isolated Testing Vessel

    HYDROS iV Isolated Testing Vessel

    $129.99
    Ships in 1-2 Days
    Add to Wish List
  16. HYDROS Control X10

    HYDROS Control X10

    $799.99
    Ships in 1-2 Days
    Add to Wish List
  17. HYDROS iV Light Shield

    HYDROS iV Light Shield

    $15.99
    Ships in 1-2 Days
    Add to Wish List
  18. HYDROS Kraken Force Port to Power Port Cable

    HYDROS Kraken Force Port to Power Port Cable

    $14.99
    Ships in 1-2 Days
    Add to Wish List
  19. HYDROS Kraken 24V Power Center

    HYDROS Kraken 24V Power Center

    $599.99
    Ships in 1-2 Days
    Add to Wish List
  20. HYDROS Force Port Adapter Cable

    HYDROS Force Port Adapter Cable

    $14.99
    Ships in 1-2 Days
    Add to Wish List
  21. Dymax CO2 Professional Regulator RX-123

    Dymax CO2 Professional Regulator RX-123

    $139.99
    See Individual Item
    Add to Wish List
  22. HYDROS Drive Port Cable

    HYDROS Drive Port Cable

    $14.99
    Ships in 1-2 Days
    Add to Wish List
  23. Reef Factory Smart Tester

    Reef Factory Smart Tester

    $680.00
    Coming Soon
    Out of stock
    Add to Wish List
  24. HYDROS Water Level Sensor

    HYDROS Water Level Sensor

    $39.99
    Ships in 1-2 Days
    Add to Wish List
  25. CoralVue HYDROS System Command Bus Cable (DATA+Power)

    CoralVue HYDROS System Command Bus Cable (DATA+Power)

    Starting at: $5.99
    See Individual Item
    Add to Wish List
  26. Neptune Systems Replacement Tubing for DOS system

    Neptune Systems Replacement Tubing for DOS system

    Starting at: $4.99
    See Individual Item
    Add to Wish List
  27. CoralVue HYDROS System Command Bus Cable (DATA ONLY)

    CoralVue HYDROS System Command Bus Cable (DATA ONLY)

    Starting at: $24.99
    See Individual Item
    Add to Wish List
  28. HYDROS Slim Temperature Sensor

    HYDROS Slim Temperature Sensor

    Special Price $19.50 Regular Price $24.99
    Ships in 1-2 Days
    Add to Wish List
  29. HYDROS Skimmer Sensor

    HYDROS Skimmer Sensor

    $39.99
    Ships in 1-2 Days
    Add to Wish List
  30. HYDROS Triple Optical Water Level Sensor

    HYDROS Triple Optical Water Level Sensor

    $39.99
    Ships in 1-2 Days
    Add to Wish List
  31. HYDROS Flow Sensor

    HYDROS Flow Sensor

    Starting at: $61.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  32. GHL KH Director/ Doser 2.1, 4 Slave Pump Combo

    GHL KH Director/ Doser 2.1, 4 Slave Pump Combo

    Starting at: $871.90
    See Individual Item
    Add to Wish List
  33. GHL Doser 2.1 SA Dosing System

    GHL Doser 2.1 SA Dosing System

    Starting at: $499.90
    See Individual Item
    Add to Wish List
  34. GHL Flow Sensor

    GHL Flow Sensor

    Starting at: $121.90
    See Individual Item
    Add to Wish List
  35. Adaptive Reef Neptune Systems Custom Controller Board

    Adaptive Reef Neptune Systems Custom Controller Board

    Starting at: $379.99
    See Individual Item
    Add to Wish List
  36. Adaptive Reef Ecotech Marine Custom Controller Board

    Adaptive Reef Ecotech Marine Custom Controller Board

    Starting at: $322.99
    See Individual Item
    Add to Wish List
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  3. $2,000.00 and above
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