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26 - 50 of 143
Marina Floating Thermometer

Marina Floating Thermometer

Feature(s): Centigrade and Fahrenheit For fresh and salt water Accurate and easy to read Safety zone indicator for most tropical fish Protects fish from unsafe temperatures

$1.99
Digital Aquatics MLC Pod LED

Digital Aquatics MLC Pod LED

Digital Aquatics MLC Pod Tech Specs Requires an RKM-MLC or RKM-ALC to operate LED Color: Available in Nocturnal Blue and Lunar White LED Viewing Angle: 100 degrees Nocturnal Blue LED Output: 240mcd per LED Nocturnal Blue ...

From $9.99
Digital Aquatics pH Probe w/ Calibration Packets

Digital Aquatics pH Probe w/ Calibration Packets

Digital Aquatics pH Probe w/Calibration Packets Resolution 0.01 pH Cable Length 4 feet Connection Type Male BNC Included Calibration Packets 1 x 7pH calibration packet 1 x 10pH calibration packet Manufacture...

$39.99
Neptune Systems I/O Break Out Box for Apex, Apex Lite, AquaController 3, or AquaController 3 Pro

Neptune Systems I/O Break Out Box for Apex, Apex Lite, AquaController 3, or AquaController 3 Pro

Easily add float switches, water on the floor sensors, etc. to the Apex, Apex Lite, AquaController 3, or AquaController 3 Pro. Simply plug the Breakout box`s minidin 8 cable into the AquaController I/O port, and then attach the fl...

$39.95
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
Neptune Systems Apex AquaController System with Lab Grade pH Probe

Neptune Systems Apex AquaController System with Lab Grade pH Probe

Neptune Systems AquaController Apex System w/ pH Probe Introducing the AquaController Apex. The professional equipment your reef deserves is now within reach. System Includes: 1 - Apex Base Unit 1 - Apex Display 1 - Ener...

$549.95
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 Temperature Probe For Apex Controller AquaController Jr, AquaController 3 and PX1000 ONLY

Neptune Systems Temperature Probe For Apex Controller AquaController Jr, AquaController 3 and PX1000 ONLY

Temperature probe for Neptune Systems: ACJr, AC3 and PX1000 Only

$29.95
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
Neptune Systems Leak Detection Probe - Solid Surface

Neptune Systems Leak Detection Probe - Solid Surface

This leak detection probe, when combined with the ALD (Advanced Leak Detection) Module, will enable your Apex System to alert on any leak or water on the floor. This particular probe is weighted and is perfect for placing on any...

$29.95
Lifegard Aquatics Big Digital Temperature Alert

Lifegard Aquatics Big Digital Temperature Alert

Large face digital thermometer with alert feature. Display both aquarium water temperature and room temperature in degrees Fahrenheit. Has 4 alert features. Alarm will sound and LED flashes: high temp alert only, low temp alert on...

$32.99 $27.99
Neptune Systems Apex AquaController System with Standard Grade pH Probe

Neptune Systems Apex AquaController System with Standard Grade pH Probe

Neptune Systems AquaController Apex System w/ pH Probe Introducing the AquaController Apex. The professional equipment your reef deserves is now within reach. System Includes: 1 - Apex Base Unit 1 - Apex Display 1 - Ene...

$524.95
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
MarineDepot.com Exclusive ReefKeeper Lite + SL1 Expansion Unit w/ FREE pH Probe

MarineDepot.com Exclusive ReefKeeper Lite + SL1 Expansion Unit w/ FREE pH Probe

We have teamed up with Digital Aquatics to bring you the best priced aquarium controller package available on the market today. Our Exclusive Digital Aquatics ReefKeeper Lite Package includes the ReefReeper Lite Basic Aquarium Co...

$199.99
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
Hagen Living Sea Floating Hydrometer with Thermometer, C & F

Hagen Living Sea Floating Hydrometer with Thermometer, C & F

Hagen Living Sea Hydrometer with Thermometer—Small 20cm (8") Accurate Easy to read Thermometer—C & F

From $7.99
pH 7.0 Buffer/Calibration Solution 500 ml

pH 7.0 Buffer/Calibration Solution 500 ml

Calibration solution for pH monitors or controllers. pH 7.0. 500mL. **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price ...

$12.49
Aquarius Thermometer, 70 - 84 F / 21 - 29 C

Aquarius Thermometer, 70 - 84 F / 21 - 29 C

Feature(s): Digital Liquid crystal (LCD) Fahrenheit - Centigrade 70F (21C) - 84F (29C) Blister packed on card

$1.99
Instant Ocean SeaTest Hydrometer

Instant Ocean SeaTest Hydrometer

Instant Ocean Hydrometer`s new improved design delivers precise full-range salinity and specific gravity readings - accurate to 0.001 - every time. Easy-fill convenience keeps hands dry when filling. It has a durable, permanent ne...

$13.49
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
JBJ Digi-Temp Thermometer

JBJ Digi-Temp Thermometer

Digi-Temp Digital Thermometer Checking your tank’s temperature has never been easier! This stylish thermometer offers a constant digital display with +/- 1 Fahrenheit accuracy. They’re also completely wireless and submersible. P...

$10.99
American Marine Pinpoint AC Adapter Kit

American Marine Pinpoint AC Adapter Kit

American Marine PINPOINT AC Adapter Kit™ (110vac) The AC adapter kit is optional to replace the 9-volt battery, which some monitor owners find convenient, especially for PINPOINT pH and PINPOINT ORP monitors. Note: Not comp...

$10.99
26 - 50 of 143
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