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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 145-180 of 316

Set Descending Direction
  1. HYDROS Control XP8 Energy Bar - Controller

    HYDROS Control XP8 Energy Bar - Controller

    $279.99
    This product will be back ordered
    Add to Wish List
  2. HYDROS Control X4 PRO Pack

    HYDROS Control X4 PRO Pack

    $659.99
    Ships in 1-2 Days
    Add to Wish List
  3. HYDROS Control X3 PRO Pack

    HYDROS Control X3 PRO Pack

    $539.99
    Ships in 1-2 Days
    Add to Wish List
  4. HYDROS Control XS (Controller Only)

    HYDROS Control XS (Controller Only)

    $159.99
    Ships in 1-2 Days
    Add to Wish List
  5. Adaptive Reef Apex 24v Audible/Visual Alarm (Single)

    Adaptive Reef Apex 24v Audible/Visual Alarm (Single)

    $64.95
    Discontinued
    Out of stock
    Add to Wish List
  6. HYDROS Magnet Mount Temperature Sensor

    HYDROS Magnet Mount Temperature Sensor

    $24.99
    Ships in 1-2 Days
    Add to Wish List
  7. HYDROS Leak Detection Sensor

    HYDROS Leak Detection Sensor

    $39.99
    Ships in 1-2 Days
    Add to Wish List
  8. HYDROS 1/4inch Flow Sensor

    HYDROS 1/4inch Flow Sensor

    $20.00
    Call For Availability
    Add to Wish List
  9. HYDROS Dual Inline TDS Sensor

    HYDROS Dual Inline TDS Sensor

    $49.99
    Ships in 1-2 Days
    Add to Wish List
  10. HYDROS WiFi Fish Feeder

    HYDROS WiFi Fish Feeder

    $34.99
    Ships in 1-2 Days
    Add to Wish List
  11. Aquarium Plants CarbonDoser® Electronic CO2 Regulator V2.0 Remote JUST THE BOX

    Aquarium Plants CarbonDoser® Electronic CO2 Regulator V2.0 Remote JUST THE BOX

    $349.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  12. Aquarium Plants CarbonDoser® Electronic CO2 Regulator V2.0 Remote (NEW RELEASE

    Aquarium Plants CarbonDoser® Electronic CO2 Regulator V2.0 Remote (NEW RELEASE

    $439.99
    Usually Ships In 2 - 3 Business Days After Submission of Order
    Add to Wish List
  13. VCA Salinity Probe Stability kit

    VCA Salinity Probe Stability kit

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

    Neptune DC24v Power Supply

    $24.99
    This product will be back ordered
    Add to Wish List
  15. HYDROS Control X3 Monitor Pack

    HYDROS Control X3 Monitor Pack

    $299.99
    Ships in 1-2 Days
    Add to Wish List
  16. AutoAqua Smart AC Socket

    AutoAqua Smart AC Socket

    $33.00
    Discontinued
    Out of stock
    Add to Wish List
  17. HYDROS WaveEngine LE Pump Controller

    HYDROS WaveEngine LE Pump Controller

    $199.99
    Ships in 1-2 Days
    Add to Wish List
  18. HYDROS Control XS Starter Kit

    HYDROS Control XS Starter Kit

    $199.99
    Ships in 1-2 Days
    Add to Wish List
  19. Milwaukee Snapback Cap

    Milwaukee Snapback Cap

    $24.95
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  20. IceCap 2K Gyre Flow Pump With HYDROS WaveEngine LE WiFi Controller

    IceCap 2K Gyre Flow Pump With HYDROS WaveEngine LE WiFi Controller

    $299.99
    Ships in 1-2 Days
    Add to Wish List
  21. Finnex HC-820M Digital Heater Controller + Sensor

    Finnex HC-820M Digital Heater Controller + Sensor

    $54.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  22. Focustronic Mastertronic Automated Water Tester

    Focustronic Mastertronic Automated Water Tester

    $1,299.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  23. Royal Exclusiv 230 Watt Red Dragon® 3 Speedy Controller Replacement

    Royal Exclusiv 230 Watt Red Dragon® 3 Speedy Controller Replacement

    $545.00
    Factory Direct - Usually Ships Out Within 1-2 Days
    Add to Wish List
  24. Neptune Systems Solenoid Valve

    Neptune Systems Solenoid Valve

    $34.99
    This product will be back ordered
    Add to Wish List
  25. Neptune Systems LDK - Leak Detection Kit

    Neptune Systems LDK - Leak Detection Kit

    $164.99
    This product will be back ordered
    Add to Wish List
  26. GHL KH Director/ Doser 2.1 SA, 4 Pump Combo

    GHL KH Director/ Doser 2.1 SA, 4 Pump Combo

    Starting at: $925.90
    See Individual Item
    Add to Wish List
  27. Coralife Digital Thermometer

    Coralife Digital Thermometer

    $8.49
    Usually Ships In 2 - 3 Business Days After Submission of Order
    Add to Wish List
  28. Neptune Systems Optical Level Sensor with Magnetic Mount

    Neptune Systems Optical Level Sensor with Magnetic Mount

    $35.00
    This product will be back ordered
    Add to Wish List
  29. Apogee MQ-510 Full Spectrum Underwater Quantum Meter

    Apogee MQ-510 Full Spectrum Underwater Quantum Meter

    $530.00
    Factory Direct - Usually Ships Out Within 1-2 Days
    Add to Wish List
  30. AutoAqua Smart Skimmer Security

    AutoAqua Smart Skimmer Security

    $59.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  31. AutoAqua Qeye and Qshooter Combo

    AutoAqua Qeye and Qshooter Combo

    $349.99
    Discontinued
    Out of stock
    Add to Wish List
  32. IceCap Salinity/Temperature Digital Pocket Tester Version 3

    IceCap Salinity/Temperature Digital Pocket Tester Version 3

    Rating:
    100%
    1  Review
    $74.99
    This product will be back ordered
    Add to Wish List
  33. HYDROS SMART PLUG

    HYDROS SMART PLUG

    $23.99
    Ships in 1-2 Days
    Add to Wish List
  34. Milwaukee MA911B/2 Double Junction pH Probe

    Milwaukee MA911B/2 Double Junction pH Probe

    $34.99
    This product will be back ordered
    Add to Wish List
  35. HYDROS WaveEngine v2 Pump Controller

    HYDROS WaveEngine v2 Pump Controller

    $299.99
    Call For Availability
    Add to Wish List
  36. HYDROS 4 Outlet WiFi AC Power Strip

    HYDROS 4 Outlet WiFi AC Power Strip

    $39.99
    Ships in 1-2 Days
    Add to Wish List
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