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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

Items 289-316 of 316

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  1. Neptune Conductivity Calibration Solution - 53.0 mS

    Neptune Systems Conductivity Calibration Solut... Conductivity Calibration Solution - 53.0 mS

    $2.99
    This product will be back ordered
    Add to Wish List
  2. Neptune Systems 2 Channel Apex to Light Dimming Cable

    Neptune Systems 2 Channel Apex to Light Dimmin... 2 Channel Apex to Light Dimming Cable

    $16.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  3. Vertex Acrylic Sensor Mount

    Vertex Acrylic Sensor Mount

    Special Price $2.99 Regular Price $11.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  4. Neptune Systems PMK PAR Monitoring Kit

    Neptune Systems PMK PAR Monitoring Kit

    $339.99
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  5. Neptune Systems WAV Starter Kit

    Neptune Systems WAV Starter Kit

    Rating:
    77%
    2  Reviews
    $504.99
    Usually Ships in 1 - 2 Business Days
    Out of stock
    Add to Wish List
  6. 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
  7. Conductivity Calibration Solution - 447 uS

    Neptune Systems Conductivity Calibration Solut... Conductivity Calibration Solution - 447 uS

    $2.99
    This product will be back ordered
    Add to Wish List
  8. Neptune Systems Oxyguard Membrane Kit (5 membrane + soln)

    Neptune Systems Oxyguard Membrane Kit (5 membr... Oxyguard Membrane Kit (5 membrane + soln)

    $74.95
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  9. Red Sea Seawater Refractometer

    Red Sea Seawater Refractometer

    $69.99
    This product will be back ordered
    Add to Wish List
  10. Hanna HI700 Checker Ammonia Low Range Fresh Water

    Hanna HI700 Checker Ammonia Low Range Fres... Checker Ammonia Low Range Fresh Water

    $64.95
    This product will be back ordered
    Add to Wish List
  11. Pinpoint Oxygen Probe Replacement

    American Marine Pinpoint Oxygen Probe Replacem... Pinpoint Oxygen Probe Replacement

    $134.00
    Usually Ships In 2 - 3 Business Days
    Add to Wish List
  12. Pinpoint II Calcium Probe Assembly

    American Marine Pinpoint II Calcium Probe Asse... Pinpoint II Calcium Probe Assembly

    $166.40
    Usually Ships In 2 - 3 Business Days
    Add to Wish List
  13. Pinpoint Oxygen Extension Cable

    American Marine Pinpoint Oxygen Extension Cable

    $23.00
    Usually Ships In 2 - 3 Business Days
    Add to Wish List
  14. Hanna HI97500 Lux Meter

    Hanna Instruments HI97500 Lux Meter

    $154.00
    Usually Ships In 2 - 3 Business Days
    Add to Wish List
  15. Neptune Systems WAV

    Neptune Systems WAV Single Pump

    $194.99
    Call For Availability
    Add to Wish List
  16. Milwaukee ORP57 Waterproof Dual Level ORP Tester

    Milwaukee ORP57 PRO Waterproof ORP/Temperature... PRO Waterproof ORP/Temperature Tester with Replaceable Probe

    $114.99
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  17. Hanna Instruments 35 ppt Salinity Calibration Solution Packs

    Hanna Instruments 35 ppt Salinity Calibration So... 35 ppt Salinity Calibration Solution Packs

    Starting at: $10.00
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  18. Hanna Instruments HI98319 Marine Salinity Tester

    Hanna Instruments HI98319 Marine Salinity Tester

    $79.99
    This product will be back ordered
    Add to Wish List
  19. HM DIGITAL SAL-1700 SALINITY & TEMPERATURE TESTING PEN

    HM DIGITAL SAL-1700 SALINITY & TEMPER... SAL-1700 SALINITY & TEMPERATURE TESTING PEN

    $69.99
    This product will be back ordered
    Add to Wish List
  20. Hanna Instruments Checker Plus pH Tester HI98100

    Hanna Instruments Checker Plus pH Tester HI98100

    $53.00
    This product will be back ordered
    Add to Wish List
  21. Dymax Base Soil

    Dymax Base Soil

    Starting at: $9.99
    See Individual Item
    Add to Wish List
  22. HYDROS ATO Auto Top-Off Kit

    HYDROS ATO Auto Top-Off Kit

    $79.99
    Ships in 1-2 Days
    Add to Wish List
  23. Reef Factory Dosing pump head for Kh Keeper Reagent pump/DP PRO

    Reef Factory Dosing pump head for Kh Keeper... Dosing pump head for Kh Keeper Reagent pump/DP PRO

    $58.99
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  24. Hydros Dosing Pump

    Hydros Dosing Pump

    $59.99
    Ships in 1-2 Days
    Add to Wish List
  25. AquaMaxx ConeS DCQ-3 Controllable In-Sump Protein Skimmer

    AquaMaxx ConeS DCQ-3 Controllable In-Sump Pro... DCQ-3 Controllable In-Sump Protein Skimmer

    $629.99
    Usually Ships in 1 - 2 Business Days
    Add to Wish List
  26. HM Digital 342 ppm NaCl Calibration Solution 3oz

    HM Digital 342 ppm NaCl Calibration Solut... 342 ppm NaCl Calibration Solution 3oz

    $8.89
    This product will be back ordered
    Add to Wish List
  27. Tunze 3152.000 Nano Osmolator

    Tunze 3152.000 Nano Osmolator *Open Box*

    $100.00
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  28. Tunze 3152.000 Nano Osmolator

    Tunze 3152.000 Nano Osmolator

    $114.99
    Ships in 1-2 Days
    Add to Wish List
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