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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 1-36 of 78

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  1. Neptune Systems EB4 & A3 Apex Jr. Controller System Bundle

    Neptune Systems EB4 & A3 Apex Jr. Controller System Bundle

    $419.90
    Call For Availability
    Out of stock
    Add to Wish List
  2. Neptune Systems A3 Apex System

    Neptune Systems A3 Apex System

    $629.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  3. Neptune Systems A3 Apex Pro System

    Neptune Systems A3 Apex Pro System

    $945.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  4. Neptune Systems A3 Apex Pro Controller System + Extra EB832

    Neptune Systems A3 Apex Pro Controller System + Extra EB832

    $1,189.90
    Factory Direct - Usually Ships Out Within 1-2 Days
    Add to Wish List
  5. Neptune Systems GRO Refugium Light

    Neptune Systems GRO Refugium Light

    Starting at: $154.99
    See Individual Item
    Add to Wish List
  6. Neptune Systems AFS CD Crossover Diet Food

    Neptune Systems AFS CD Crossover Diet Food

    $12.95
    This product will be back ordered
    Add to Wish List
  7. Neptune Systems SKY LED Aquarium Light

    Neptune Systems SKY LED Aquarium Light

    $869.99
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  8. Neptune Systems SKY Aquarium LED Hanging Kit

    Neptune Systems SKY Aquarium LED Hanging Kit

    $37.99
    Out of stock
    Add to Wish List
  9. Neptune Systems SKY Shimz Diffused Lens

    Neptune Systems SKY Shimz Diffused Lens

    $34.95
    Order by 3:30pm EST for Same Day Shipping (M-F)
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  10. Neptune Systems COR 15 DC Return Pump

    Neptune Systems COR 15 DC Return Pump

    $339.99
    This product will be back ordered
    Add to Wish List
  11. Neptune Systems COR 20 DC Return Pump

    Neptune Systems COR 20 DC Return Pump

    $399.99
    This product will be back ordered
    Add to Wish List
  12. Power Supply – 24VDC 36W

    Neptune Systems Power Supply – 24VDC 36W

    $34.99
    This product will be back ordered
    Add to Wish List
  13. 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
  14. Neptune Systems MXM Module

    Neptune Systems MXM Module

    $119.95
    This product will be back ordered
    Add to Wish List
  15. 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
  16. Neptune Systems Lunar Simulators

    Neptune Systems Lunar Simulators

    Starting at: $34.99
    See Individual Item
    Add to Wish List
  17. Neptune Systems Liquid Level Sensor Sensors

    Neptune Systems Liquid Level Sensor Sensors

    Starting at: $37.99
    See Individual Item
    Add to Wish List
  18. Neptune Systems Flow Sensor – 2″ (FS-200)

    Neptune Systems Flow Sensors

    Starting at: $21.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  19. Neptune Systems Leak Detection Probes for Use with FMM Module

    Neptune Systems Leak Detection Probes for Use with FMM Module

    Starting at: $34.99
    See Individual Item
    Add to Wish List
  20. Neptune Systems AquaBus Cables

    Neptune Systems AquaBus Cables

    Starting at: $11.99
    See Individual Item
    Add to Wish List
  21. Neptune Systems LD-3 Optical Multi-Surface Leak Sensor

    Neptune Systems LD-3 Optical Multi-Surface Leak Sensor

    $39.95
    This product will be back ordered
    Add to Wish List
  22. Neptune Systems Apex Jr.

    Neptune Systems Apex Jr.

    $299.95
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  23. Neptune Systems Trident Two Month Reagent Kit Supply

    Neptune Systems Trident Two Month Reagent Kit Supply

    $49.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  24. Neptune Systems Magnetic Optical Sensor

    Neptune Systems Magnetic Optical Sensor

    $41.99
    This product will be back ordered
    Add to Wish List
  25. Neptune Systems FMK Flow Monitoring Kit

    Neptune Systems FMK Flow Monitoring Kit

    Rating:
    100%
    1  Review
    $219.99
    This product will be back ordered
    Add to Wish List
  26. Neptune Systems Trident Reagents - 6 Month Supply

    Neptune Systems Trident Reagents - 6 Month Supply

    $109.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
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  27. Neptune Systems Calibration Kit (ph 7.0, ph 10.0, Salinity 53000uS)

    Neptune Systems Calibration Kit (ph 7.0, ph 10.0, Salinity 53000uS)

    $5.99
    This product will be back ordered
    Add to Wish List
  28. Neptune Systems FMM Fluid Monitoring Module

    Neptune Systems FMM Fluid Monitoring Module

    $109.99
    This product will be back ordered
    Add to Wish List
  29. Neptune Systems Optical Level Sensor

    Neptune Systems Optical Level Sensor

    $29.99
    This product will be back ordered
    Add to Wish List
  30. Neptune DC24v Power Supply

    Neptune DC24v Power Supply

    $24.99
    This product will be back ordered
    Add to Wish List
  31. Neptune Systems Solenoid Valve

    Neptune Systems Solenoid Valve

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

    Neptune Systems LDK - Leak Detection Kit

    $164.99
    This product will be back ordered
    Add to Wish List
  33. 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
  34. Neptune Systems Trident 2 NP Automatic Nitrate & Phosphate Water Tester

    Neptune Systems Trident 2 NP Automatic Nitrate & Phosphate Water Tester

    $0.00
    Out of stock
    Add to Wish List
  35. Neptune Systems Apex TRIDENT

    Neptune Systems Apex TRIDENT (Alk, Cal, Mag) Monitoring Device

    Rating:
    93%
    1  Review
    $674.99
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  36. Neptune Systems Apex Controller Base Unit

    Neptune Systems Apex Controller Base Unit

    $399.95
    Discontinued
    Out of stock
    Add to Wish List
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