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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: WELCOME Extra 10% With Account Checkout to Save 10%
Limited Time Offer - 15% Off Livestock

25 Items

Set Descending Direction
  1. Seneye+ Slides (3 Pack)

    Seneye+ Slides (3 Pack)

    Starting at: $28.32
    See Individual Item
    Add to Wish List
  2. Seneye USB Extension Cable

    Seneye USB Extension Cable

    $24.99
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  3. Kessil Control Cable Type 1

    Kessil Control Cable Type 1 (Neptune Apex)

    $20.00
    Ships in 1-2 Days
    Add to Wish List
  4. Biotek Marine IntelliCradle - Universal

    Biotek Marine IntelliCradle - Universal

    Special Price $28.69 Regular Price $34.99
    This product will be back ordered
    Add to Wish List
  5. HYDROS Float Switch Sensor with Magnetic Mount

    HYDROS Float Switch Sensor with Magnetic Mo... Switch Sensor with Magnetic Mount

    $29.99
    Ships in 1-2 Days
    Add to Wish List
  6. CoralVue HYDROS System Command Bus Cable (DATA ONLY)

    CoralVue HYDROS System Command Bus Cable (DATA... System Command Bus Cable (DATA ONLY)

    Starting at: $24.99
    See Individual Item
    Add to Wish List
  7. AquaMaxx Magnetic Probe Holder

    AquaMaxx Magnetic Probe Holder

    $24.99
    Sold Out
    Out of stock
    Add to Wish List
  8. IceCap 4-Probe Magnetic Holder

    IceCap 4-Probe Magnetic Holder

    $28.99
    Ships in 1-2 Days
    Add to Wish List
  9. AutoAqua Inline Digital TDS Meters

    AutoAqua Inline Digital TDS Meters

    Starting at: $27.49
    Discontinued
    Add to Wish List
  10. Neptune Systems Flow Sensor – 2″ (FS-200)

    Neptune Systems Flow Sensors

    Starting at: $21.99
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  11. Neptune Systems Optical Level Sensor

    Neptune Systems Optical Level Sensor

    $29.99
    This product will be back ordered
    Add to Wish List
  12. HYDROS Rope Leak Sensor Extension

    HYDROS Rope Leak Sensor Extension

    $29.99
    Ships in 1-2 Days
    Add to Wish List
  13. HYDROS Magnet Mount Temperature Sensor

    HYDROS Magnet Mount Temperature Sensor

    $24.99
    Ships in 1-2 Days
    Add to Wish List
  14. HYDROS 1/4inch Flow Sensor

    HYDROS 1/4inch Flow Sensor

    $20.00
    Call For Availability
    Add to Wish List
  15. VCA Salinity Probe Stability kit

    VCA Salinity Probe Stability kit

    Special Price $22.92 Regular Price $27.95
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  16. Neptune DC24v Power Supply

    Neptune DC24v Power Supply

    $24.99
    This product will be back ordered
    Add to Wish List
  17. Milwaukee Snapback Cap

    Milwaukee Snapback Cap

    $24.95
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  18. HYDROS SMART PLUG

    HYDROS SMART PLUG

    $23.99
    Ships in 1-2 Days
    Add to Wish List
  19. Neptune Systems 1LINK Extension Cable

    Neptune Systems 1LINK Extension Cable

    $23.99
    This product will be back ordered
    Add to Wish List
  20. Neptune Systems 1LINK Male-Male Cable 10'

    Neptune Systems 1LINK Male-Male Cable 10'

    $23.99
    This product will be back ordered
    Add to Wish List
  21. Pinpoint Nitrate Probe Calibration Fluid

    American Marine PINPOINT 15' Extension Ca... PINPOINT 15' Extension Cable

    Special Price $24.19 Regular Price $29.50
    Usually Ships In 2 - 3 Business Days
    Add to Wish List
  22. BioTek Marine Salinity Refractometer

    Biotek Marine Salinity Refractometer

    Special Price $29.00 Regular Price $41.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  23. Lifegard LED Digital Thermometer

    Lifegard Aquatics LED Digital Thermometer

    Special Price $20.71 Regular Price $25.25
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  24. Advanced Leak Detection Low Profile Probe

    Neptune Systems Advanced Leak Detection Low Pr... Advanced Leak Detection Low Profile Probe

    Special Price $22.99 Regular Price $31.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  25. Neptune Apex 2 Channel AquaSurf/Apex to Stream Cable

    Neptune Systems Apex 2 Channel AquaSurf/Apex t... Apex 2 Channel AquaSurf/Apex to Stream Cable

    $21.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
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