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1 - 25 of 47
Marine Depot Aquarium Pro Refractometer

Marine Depot Aquarium Pro Refractometer

Designed specifically for aquarium use to measure the salinity of natural sea water (NSW). Most handheld saltwater refractometers available in the hobby are designed and calibrated for testing brine solution, i.e. sodium chlorid...

$64.99
Neptune Systems Apex Automatic Feeding System (AFS)

Neptune Systems Apex Automatic Feeding System (AFS)

The Automatic Feeding System (AFS) is the only automatic fish feeder designed specifically to work with the Apex AquaController. Not only does it seal your food to keep it dry, but it meters out small amounts of food on the schedu...

$99.95
Neptune Systems pH Probe

Neptune Systems pH Probe

Feature(s): Precision of +/- .01 10` coax cable Sealed Ag/AgCI reference. Standard BNC connector

From $44.95
Milwaukee Seawater Digital Refractometer

Milwaukee Seawater Digital Refractometer

The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each scale is temperature compensated. ...

$114.49
Neptune Systems Energy Bar 8 Expansion Unit (EB8)

Neptune Systems Energy Bar 8 Expansion Unit (EB8)

Neptune Systems EnergyBar 8 The EnergyBar 8 module from Neptune Systems features 8 independently controllable outlets. With power failure detection, active electrical current monitoring, and failsafe features make this power ...

$159.95
Neptune Systems Apex Ecotech Marine Wireless Expansion Module (WXM)

Neptune Systems Apex Ecotech Marine Wireless Expansion Module (WXM)

The Wireless Expansion module allows for truely flexible control of Ecotech Marine Vortech and EcoSmart wireless pumps. The WXM features are: Wirelessly controls any of Ecotech`s wireless pumps (WWD or EcoSmart ). 11 Inde...

$124.95
Neptune Systems Apex AquaController PM2 Conductivity, Temperature, I/O Expansion Box

Neptune Systems Apex AquaController PM2 Conductivity, Temperature, I/O Expansion Box

The PM2 probe module, includes support for conductivity (salinity), temperature, and 6 digital inputs. The PM2 features are: Monitor/Control Conductivity and temperature. 6 digital inputs for float switches, water on floo...

$84.95
Captive Purity Refractometer

Captive Purity Refractometer

The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Rea...

From $59.99
Neptune Systems Lab Grade Conductivity / Salinity Probe

Neptune Systems Lab Grade Conductivity / Salinity Probe

Start measuring salinity in your aquarium and get alerts when out of range. BUY THIS PROBE IF YOU ARE Replacing an old probe Adding salinity monitoring to your system via Neptune Systems Apex AquaController PM2 Expansio...

$124.95
American Marine Pinpoint pH Monitor

American Marine Pinpoint pH Monitor

Protect your investment with American Marine Pinpoint Controllers & Monitors Using the most current technology and design, American Marine controllers and monitors have become the most respected line of digital instruments ...

$99.99
Digital Aquatics ReefKeeper Lite Controller

Digital Aquatics ReefKeeper Lite Controller

ReefKeeper Lite Basic ReefKeeper Lite Preliminary Product Information Expandable - up to 4 modules (PC4s, SL1s or MLC) pH, ORP, and switch inputs (w/ optional SL1) 16 timers / 16 alarms Audible / Visual alarms Wavem...

From $119.99
Digital Aquatics RKM-PC4

Digital Aquatics RKM-PC4

IntellaStrip Technology Our new PC4 is the most advanced power distribution unit in the industry with the ability to keep your system up and running even if you have a device failure. Manual Override Mode Gives you ...

$89.99
Neptune Systems Apex AquaController PM1 pH or ORP, Temperature, I/O Expansion Box

Neptune Systems Apex AquaController PM1 pH or ORP, Temperature, I/O Expansion Box

The first expansion module, the PM1, with a pH or ORP, temperature, and 6 digital inputs. 4 in 1 goodness with this module! The PM1 probe module is just what you need if you want to monitor pH or ORP in your tank. And, the...

$84.95
Aqua Logic Digital Temperature Controller

Aqua Logic Digital Temperature Controller

Aqua Logic Single Stage Digital Controller - heater OR chiller up to 1/2hp LCD Electronic Temperature Controller - This device is operable from a distance of up to 400 feet and has a superior accuracy for pinpoint temperature con...

From $125.00
Neptune Systems Advanced Leak Detection Module (ALD)

Neptune Systems Advanced Leak Detection Module (ALD)

The Advanced Leak Detection module easily connects to any Neptune Apex System (Apex, Lite, or Jr.) and gives you up to four locations of leak detection. Two different types of leak detection probes are available (sold separate...

$74.95
Digital Aquatics ReefKeeper Module RKM-SL2v2

Digital Aquatics ReefKeeper Module RKM-SL2v2

The RKM-SL2 is the newest System Lab module from Digital Aquatics. It's a big leap forward with fully (and individually,) isolated ph and salinity ports. On top of that, the Digital Aquatics salinity probe is equipped with full di...

$79.99
Neptune Systems Apex Variable Speed/Dimming Module (VDM)

Neptune Systems Apex Variable Speed/Dimming Module (VDM)

The Variable Speed/Dimming module allows for the control of the Aqua Illuminations LED lighting systems as well as adding an additional 4 0-10V variable speed ports.: Independent control of the white and blue Aqua Illumination...

$99.95
Neptune Systems ORP Probe

Neptune Systems ORP Probe

Feature(s): 10` coax cable Platinum band electrode. Standard BNC connector

From $69.95
Milwaukee Seawater Digital Refractometer with Protective Hardshell Case

Milwaukee Seawater Digital Refractometer with Protective Hardshell Case

Milwaukee Seawater Digital Refractometer with Protective Hardshell Case The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing ...

$146.99
Digital Aquatics Salinity Probe w/ Calibration Packets

Digital Aquatics Salinity Probe w/ Calibration Packets

Features Lab grade conductivity probe 1 mounting suction cup 1 x 35.0 PPT calibration solution Works with the SL2v2 module (sold separately) and your ReefKeeper to test salinity

$114.99
American Marine Pinpoint pH Monitor Package

American Marine Pinpoint pH Monitor Package

American Marine PINPOINT pH Monitor The PINPOINT pH Monitor™ is in use by thousands of customers worldwide. This affordable unit remains the only full-time pH monitor with .01 resolution. The PINPOINT pH Monitor™ requires only a ...

$113.99
Neptune Systems Energy Bar 4 Expansion Unit (EB4)

Neptune Systems Energy Bar 4 Expansion Unit (EB4)

The EnergyBar 4 module features 4 independently controllable outlets. With power failure detection, active electrical current monitoring, and failsafe features make this power bar far better than any competing units. 4 indepen...

$119.95
Neptune Systems Lunar Simulator LED String

Neptune Systems Lunar Simulator LED String

LSM Lunar LED String – 3 LEDs *Use this string of LED in combination with your Apex system and Lunar Simulation Module (LSM) When you purchase the Apex Controller and Lunar Simulation Module you need to outfit it with a ...

From $39.95
Neptune Systems Apex AI Wireless Expansion Module (AWM)

Neptune Systems Apex AI Wireless Expansion Module (AWM)

For years the Apex has given owners of the AI Sol lights a great way to control their tank lighting. Now, owners of AI Vega, Hydra or Hydra Fifty-Two will finally be able to wirelessly control their lights through their Apex syste...

$124.95
American Marine Pinpoint ORP Monitor

American Marine Pinpoint ORP Monitor

American Marine PINPOINT ORP Monitor PINPOINT ORP Monitor™ will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or potassium permanganate as an artificial ...

$119.99
1 - 25 of 47
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