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Probes & Controller Accessories

Aquarium controllers have seemingly endless probes and add-ons to help you achieve your reefing goals. Here you'll find everything from replacement probes, maintenance items, accessories, and controller add-ons for the most popular brands like Apex, GHL, and Hydros.
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72 Items

  1. Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS
    1  Review
    Neptune Systems
    Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS
    $10.99 $10.99

  2. Double Junction Lab Grade pH Probe
    15  Reviews
    Bulk Reef Supply
    Double Junction Lab Grade pH Probe
    $84.99 $99.99

  3. Single Junction Lab Grade pH Probe
    3  Reviews
    Bulk Reef Supply
    Single Junction Lab Grade pH Probe
    $48.44 $56.99

  4. Lab Grade Double Junction pH Probe
    10  Reviews
    Neptune Systems
    Lab Grade Double Junction pH Probe
    $124.99 $124.99

  5. PINPOINT pH Replacement Probe Inc.
    18  Reviews
    American Marine
    PINPOINT pH Replacement Probe Inc.
    $44.19 $51.99

  6. Double Junction Lab Grade ORP Probe
     
    0  Reviews
    Bulk Reef Supply
    Double Junction Lab Grade ORP Probe
    $89.24 $104.99

  7. Lab Grade Double Junction ORP Probe
     
    0  Reviews
    Neptune Systems
    Lab Grade Double Junction ORP Probe
    $134.99 $134.99

  8. Lab Grade Conductivity/Salinity Probe
    69  Reviews
    Neptune Systems
    Lab Grade Conductivity/Salinity Probe
    $259.99 $259.99

  9. Salinity Probe Stability Kit (SPS)
    12  Reviews
    Vivid Creative Aquatics
    Salinity Probe Stability Kit (SPS)
    $27.95 $27.95

  10. Temperature Probe
    18  Reviews
    Neptune Systems
    Temperature Probe
    $52.99 $52.99

  11. AvidAqua InSight Apex Controller Display
    6  Reviews
    AvidAqua
    AvidAqua InSight Apex Controller Display
    From: $159.95

    Choose Options Notify Me When In-Stock
  12. HI98509 Checktemp 1 Digital Thermometer
    11  Reviews
    Hanna Instruments
    HI98509 Checktemp 1 Digital Thermometer
    $62.99 $62.99

  13. 25-Pack HI70024P 35ppt Salinity Calibration Sachet
    5  Reviews
    Hanna Instruments
    25-Pack HI70024P 35ppt Salinity Calibration Sachet
    $39.99 $39.99

  14. Apex Controller Toggle Box
    2  Reviews
    Adaptive Reef
    Apex Controller Toggle Box
    $149.88 $149.88

  15. Audible & Visual Apex Alarm
     
    0  Reviews
    Adaptive Reef
    Audible & Visual Apex Alarm
    $129.88 $129.88

  16. MPR Magnetic Probe Rack
    80  Reviews
    Neptune Systems
    MPR Magnetic Probe Rack
    $64.99 $64.99

  17. CustomCradle Pro Tube Holder
     
    0  Reviews
    Innovative Marine
    CustomCradle Pro Tube Holder
    $28.80 $36.00

  18. PR-1 Probe Holder
     
    0  Reviews
    AquaReady
    PR-1 Probe Holder
    $30.88 $30.88

  19. CustomCradle Pro Probe Holder
    1  Review
    Innovative Marine
    CustomCradle Pro Probe Holder
    $28.80 $36.00

  20. MPO Duo - Magnetic Probe Organizer
    2  Reviews
    AvidAqua
    MPO Duo - Magnetic Probe Organizer
    $39.95 $39.95

  21. MPO Quatro - Magnetic Probe Organizer
    5  Reviews
    AvidAqua
    MPO Quatro - Magnetic Probe Organizer
    $44.95 $44.95

  22. MTO - Magnetic Tubing Organizer
    1  Review
    AvidAqua
    MTO - Magnetic Tubing Organizer
    $44.95 $44.95

  23. Probes Multi holder
     
    0  Reviews
    Reef Factory
    Probes Multi holder
    $15.00 $29.99

  24. LLS Liquid Level Sensor
    31  Reviews
    Neptune Systems
    LLS Liquid Level Sensor
    From: $69.88

    Choose Options Notify Me When In-Stock
  25. LD-3 Optical Multi-Surface Leak Sensor
    2  Reviews
    Neptune Systems
    LD-3 Optical Multi-Surface Leak Sensor
    $64.99 $64.99

  26. MOS Magnetic Optical Sensor
    10  Reviews
    Neptune Systems
    MOS Magnetic Optical Sensor
    $64.99 $64.99

  27. OS-1 Optical Level Sensor V2
    19  Reviews
    Neptune Systems
    OS-1 Optical Level Sensor V2
    $42.99 $42.99

  28. LD-2 Solid Surface Leak Detection Probe
    1  Review
    Neptune Systems
    LD-2 Solid Surface Leak Detection Probe
    $52.99 $52.99

  29. LD-1 Low Profile Leak Detection Probe
    1  Review
    Neptune Systems
    LD-1 Low Profile Leak Detection Probe
    $52.99 $52.99

  30. Low-Profile Advanced Leak Detection Probe
    4  Reviews
    Neptune Systems
    Low-Profile Advanced Leak Detection Probe
    $42.99 $42.99

  31. Solid Surface Advanced Leak Detection Probe
    16  Reviews
    Neptune Systems
    Solid Surface Advanced Leak Detection Probe
    $42.99 $42.99

  32. Lab Grade Dissolved Oxygen Probe
    3  Reviews
    Neptune Systems
    Lab Grade Dissolved Oxygen Probe
    $899.99 $899.99

  33. Float Switch - Vertical Mount
    12  Reviews
    Bulk Reef Supply
    Float Switch - Vertical Mount
    $11.04 $12.99

  34. Float Switch - Horizontal Mount
    6  Reviews
    Bulk Reef Supply
    Float Switch - Horizontal Mount
    $14.27 $16.79

  35. Sample Water Filter Pod (SWF-POD)
    2  Reviews
    Vivid Creative Aquatics
    Sample Water Filter Pod (SWF-POD)
    $22.95 $22.95

  36. SWF-POD Accessory Pack
     
    0  Reviews
    Vivid Creative Aquatics
    SWF-POD Accessory Pack
    $9.95 $9.95

  37. Standard Aquarium Controller Board
    7  Reviews
    Adaptive Reef
    Standard Aquarium Controller Board
    From: $169.88

    Choose Options Notify Me When In-Stock
  38. Deluxe Aquarium Controller Board (with hinges)
    6  Reviews
    Adaptive Reef
    Deluxe Aquarium Controller Board (with hinges)
    From: $259.88

    Choose Options Notify Me When In-Stock
  39. Deluxe XL Aquarium Controller Board
     
    0  Reviews
    Adaptive Reef
    Deluxe XL Aquarium Controller Board
    From: $309.88

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  40. Deluxe Mini Aquarium Controller Board
     
    0  Reviews
    Adaptive Reef
    Deluxe Mini Aquarium Controller Board
    From: $119.88

    Choose Options Notify Me When In-Stock