My Cart (0 items)

Controllers & Testing

Test Kits
Test Kits
Controllers & Monitors
Controllers & Monitors
Hydrometers & Refractometers
Hydrometers & Refractometers
Hanna Checker Colorimeters
Hanna Checker Colorimeters
Timers & Thermometers
Timers & Thermometers
Probes & Accessories
Probes & Accessories
32 / 64
  1. 1
  2. /
  3. 2
High / Low
  • Apex Controller Gold System - Neptune Systems

    799 Reward Points
    $799.99
    Please wait...
  • Apex Controller with Lab-Grade pH Probe - Neptune Systems

    549 Reward Points
    $549.99
    Please wait...
  • Apex Controller with Standard pH Probe - Neptune Systems

    524 Reward Points
    $524.99
    Please wait...
  • ReefKeeper Elite w/ Net - Digital Aquatics

    449 Reward Points
    $449.99
    Please wait...
  • MQ-200 Quantum Separate Sensor with Handheld PAR Meter

    379 Reward Points
    $379.99
    Please wait...
  • ReefKeeper Elite Plus - Digital Aquatics

    349 Reward Points
    $349.99

    Out of stock

  • DŌS Dosing and Fluid Metering System - Neptune Systems

    349 Reward Points
    $349.95

    Out of stock

  • ReefKeeper Lite Plus - Digital Aquatics

    279 Reward Points
    $279.99
    Please wait...
  • Apex Jr Controller - Neptune Systems

    239 Reward Points
    $239.99

    Out of stock

  • Milwaukee SMS125 pH/ORP Controller Combo

    214 Reward Points
    Please wait...
  • PINPOINT pH Controller

    199 Reward Points
    Please wait...
  • PINPOINT ORP Controller

    199 Reward Points
    Please wait...
  • Energy Bar 8 - Neptune Systems

    159 Reward Points
    $159.99
    Please wait...
  • ReefKeeper APC Advanced Pump Controller - Digital Aquatics

    129 Reward Points
    $129.99
    Please wait...
  • Milwaukee MC510 ORP Controller

    129 Reward Points
    Please wait...
  • VorTech Wireless Module: WXM - Neptune Systems

    124 Reward Points
    $124.99
    Please wait...
  • Lab Grade Conductivity/Salinity Probe - Neptune Systems

    124 Reward Points
    $124.99
    Please wait...
  • AI Wireless Module: AWM - Neptune Systems

    124 Reward Points
    $124.99
    Please wait...
  • ReefKeeper Lite Basic - Digital Aquatics

    119 Reward Points
    $119.99
    Please wait...
  • Milwaukee Digital Seawater Refractometer

    119 Reward Points
    Please wait...
  • Energy Bar 4 - Neptune Systems

    119 Reward Points
    $119.99
    Please wait...
  • Milwaukee MC122 pH Controller

    119 Reward Points
    $119.99
    Please wait...
  • PINPOINT ORP Monitor

    119 Reward Points
    Please wait...
  • PINPOINT Salinity Monitor

    119 Reward Points
    Please wait...
  • ReefKeeper NET Internet Module - Digital Aquatics

    119 Reward Points
    $119.99
    Please wait...
  • Milwaukee MW500 ORP Monitor

    109 Reward Points
    Please wait...
  • AFS Automatic Feeding System - Neptune Systems

    99 Reward Points
    $99.99
    Please wait...
  • LED & Pumps Control Module: VDM - Neptune Systems

    99 Reward Points
    $99.99
    Please wait...
  • PINPOINT pH Monitor

    99 Reward Points
    Please wait...
  • Milwaukee MA957 CO2 Regulator

    99 Reward Points
    Please wait...
  • ReefLink Wireless Controller - EcoTech Marine

    99 Reward Points
    $99.00
    Please wait...
  • Milwaukee MC120 pH Monitor

    89 Reward Points

    Out of stock

  • ReefKeeper PC4 Power Bar Module - Digital Aquatics

    89 Reward Points
    $89.99
    Please wait...
  • ORP-200 Waterproof ORP Meter - HM Digital

    89 Reward Points
    $89.99

    Out of stock

  • Salinity Module: PM2 - Neptune Systems

    84 Reward Points
    $84.99
    Please wait...
  • pH/ORP Probe Module: PM1 - Neptune Systems

    84 Reward Points
    $84.99
    Please wait...
  • ReefKeeper AP1 Advanced Probe 1 - Digital Aquatics

    79 Reward Points
    $79.99
    Please wait...
  • Milwaukee MW101 pH Meter w/Battery

    79 Reward Points
    Please wait...
  • PH-200 Waterproof pH Meter - HM Digital

    79 Reward Points
    $79.99
    Please wait...
  • ReefKeeper ALC Dimmable T5 & Aqua Illumination Sol LED Controller - Digital Aquatics

    79 Reward Points
    $79.99
    Please wait...
  • Advanced Leak Detection Module: ALD - Neptune Systems

    74 Reward Points
    $74.99
    Please wait...
  • PINPOINT ORP Replacement Probe

    74 Reward Points
    Please wait...
  • BRS Lab Grade ORP Probe

    69 Reward Points
    Please wait...
  • ReefKeeper RD1 Remote Display 1 - Digital Aquatics

    69 Reward Points
    $69.99
    Please wait...
  • ORP Probe - Neptune Systems

    Starting at: $69.99

  • ReefKeeper SL1 pH and ORP Module - Digital Aquatics

    69 Reward Points
    $69.99
    Please wait...
  • Digital Aquatics ReefKeeper MLC Lunar Light Module

    Starting at: $69.99

  • ReefKeeper PC1 Expansion Socket (Bus connection for Elite)

    69 Reward Points
    $69.99
    Please wait...
  • BRS Lab Grade pH Probe

    59 Reward Points
    Please wait...
  • ReefKeeper DCI DC Pump Interface - Digital Aquatics

    56 Reward Points
    $56.99
    Please wait...
  • Red Sea Algae Control Multi Test Kit (NO3/PO4)

    49 Reward Points
    $49.99
    Please wait...
  • ReefKeeper Expansion Socket - Digital Aquatics

    49 Reward Points
    $49.99

    Out of stock

  • Phosphate Low Range Colorimeter HI713 Hanna Checker HC - Fresh & Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Calcium Colorimeter HI758 Hanna Checker HC - Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Alkalinity Colorimeter HI755 Hanna Checker HC - Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Total Chlorine Colorimeter HI711 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Nitrite Low Range Colorimeter HI707 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Phosphorus High Range Colorimeter HI706 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Silica Low Range Colorimeter HI705 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Alkalinity Colorimeter HI775 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Free Chlorine Colorimeter HI701 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Total Chlorine Ultra Low Range Colorimeter HI761 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Nitrite High Range Colorimeter HI708 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Ammonia Medium Range Colorimeter HI715 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
32 / 64
  1. 1
  2. /
  3. 2
High / Low