Meters & Controllers

Neptune Systems Apex A2 Pro Controller with EB832 & All Probes

Neptune Systems Apex A2 Pro aquarium controller system in good working condition. Included: * Apex base unit * Energy Bar 832 (EB832) * Temperature probe * pH probe * ORP probe * Salinity probe * AquaBus cable All probes have been kept submerged and were never allowed to dry out. The probes will require calibration before use. The system is used and may show normal cosmetic signs of use. Please review all photos for the exact condition and included items. Sold as pictured. Feel free to contact me with any questions.

Netune Systems Apex DDR DOS Dual Reservoir Container

Works fine, only flaws are cosmetic. 2x units available in similar condition, price is per unit.

Neptune Apex EL Head Unit

Neptune Systems Apex EL Base Unit (APEXEL) Used and in good working condition. Unit shows normal cosmetic wear/scratches from use; please review all photos for exact condition. * Apex EL base unit * Model/Part Number: APEXEL * Genuine Neptune Systems * Wi-Fi/Ethernet capable * Apex Fusion compatible * Base unit only * No probes, EB832 Energy Bar, cables, or other accessories included * You will receive exactly what is pictured Unit will be properly packaged for shipping. eBay item specifics Brand: Neptune Systems Model: Apex EL MPN: APEXEL Type: Aquarium Controller Water Type: Marine / Reef Aquarium Condition: Used

Milwaukee MC122 PRO pH Controller, USA 110V for Aquariums

Works perfect

EcoTech ReefLink BR10 Digital Marine Aquarium Equipment Controller HARDLY USED

An LED ring on the ReefLink unit lets you know the status of the ReefLink connection.

DIGITAL AQUATICS ReefKeeper Lite Basic

Used (Like new) The DIGITAL AQUATICS ReefKeeper Lite Basic is a controller designed by Digital Aquatics specifically for controlling temperature parameters in fish tanks or aquariums. This device allows users to accurately measure and regulate the temperature levels in their aquatic environments to ensure a healthy and optimal environment for their fish and other aquatic pets. With its user-friendly design and reliable performance, the ReefKeeper Lite Basic is a valuable tool for maintaining water quality and promoting the overall well-being of aquatic animals in home aquariums.

Neptune Systems Apex Classic Controller

Unit is tested and is in working condition doea have some corrosion as can be seen in the pictures but the unit work fine. It has been removed from the fusion account and is ready to go.

Neptune Systems Apex A3 Pro Base Unit Only No Power Supply Just Unit

Neptune Systems Apex A3 Pro Base Unit Only No Power Supply Just Unit. Condition is Used. Shipped with USPS Ground Advantage.

neptune dos multi purpous dosing and fluid metering system

The Neptune DOS Multi-Purpose Dosing and Fluid Metering System is a top-of-the-line product designed for fish and aquarium enthusiasts. With its precise dosing capabilities and fluid metering features, this system allows users to easily control and monitor the water quality and levels in their aquariums. The Neptune brand is known for its reliability and innovation, making this product a valuable addition to any home aquarium setup.

Neptune Systems - DOS Dosing Pump (PRE-OWNED)

Pre Owned Does NOT include Dosing heads Does NOT include any cables or power supply The Neptune Systems DOS Dosing and Fluid Metering System is a pre-owned digital controller designed for aquariums and fish tanks. Made in the United States, this fluid metering system by Neptune Systems allows for precise and accurate dosing of supplements to maintain optimal water quality for your aquatic pets. Perfect for hobbyists looking to automate and streamline their aquarium maintenance tasks, this system offers convenience and peace of mind for fish tank owners.

Neptune Systems - DOS Dosing Pump (PRE-OWNED)

Pre Owned Does NOT include dosing heads Does NOT include any cables or power supply SKU: 001 The Neptune Systems DOS Dosing and Fluid Metering System is a pre-owned digital controller designed for aquariums and fish tanks. Made in the United States, this fluid metering system by Neptune Systems allows for precise and accurate dosing of supplements to maintain optimal water quality for your aquatic pets. Perfect for hobbyists looking to automate and streamline their aquarium maintenance tasks, this system offers convenience and peace of mind for fish tank owners.

Used Neptune Systems APEX A2 Base Unit.

Apex A2 pro base unit. Probes and energy bar not included. The unit has been tested and is in good working condition without any issues. Please see pictures for cosmetic blemishes.

GHL Ion Director And 4 Head Dosers

Ghl ion director. 4 head dosers. Includes power supply with splitter. Pab cable. And a bunch of tubing.

LD-3 Neptune Systems Optical Multi-Surface Leak Sensor

Used Neptune Systems LD3 leak detector sensor. Tested and working

GHL KH Director And 4 Head Doser

4 head dosers. Ghl kh director. Comes with power cords and pab cables

Neptune Systems APEX Display Module

Used neptune systems apex display module in great condition still has screen protector from factory. Tested and works good.

Neptune systems Apex Energy Bar 8 EB8 For Apex controller

Neptune Systems APEX Energy Bar 8 with aquabus cable. All outlets have been tester and work without any issues. See pictures for all cosmetic blemishes. Overall in good shape.

Pinpoint Digital ORP/REDOX Monitor ORP Meter Kit w/ Probe

Pinpoint Digital ORP/REDOX Monitor ORP Meter Kit w/ Probe.

hanna marine alkalinity tester - NO reagents included

fully functional, does not include reagents. listing includes what's shown in photo - checker, case etc.

Neptune Systems Apex DOS Dosing & Fluid Metering System W/ DDR Dosing Reservoir

This listing is for Neptune Systems Apex DOS Dosing & Fluid Metering System W/ DDR Dosing Reservoir. Please refer to all photos for more details as they are the best part of the description. Photos are of the actual item that you will receive.

Neptune Systems A3 Apex System Aquarium Controller

Includes temp probe and ph probe, pH probe will need to be calibrated or replaced as its not been stored in water. Temp will work fine. comes with everything in pictures.

Neptune A3 Apex Pro System read description

Used Neptune Apex A3 Pro system. This will not include the probes/LLS/LD3 water sensor The head and energy bar are in perfect working condition. The probes were crusted and old so I threw them away after the move. The LLS never worked so I chucked it a while ago. The LD3 also never worked so I chucked it. You will need new probes, you wouldn’t want used ones anyway. Everything else is great

American Marine Pinpoint PH Monitor With Sensor And Long Cord .

I tested with several different liquids. It’s used but works fine.

Neptune Systems Apex Lab Grade Ph And Orp Probe Mfg 2018

Used Neptune Lab Grade Ph and ORP probe, still working good. Will need to be re-calibrated. See pictures for cosmetic blemishes overall.in good.condition.

JBJ Auto Top Off ATO Self Leveling Controller with pump

JBJ Automatic Top Off (ATO) system in good working condition. Great for automatically maintaining the water level in your sump or aquarium and eliminating the need for manual freshwater top-offs. Just add your freshwater reservoir and tubing and you're ready to go.

Neptune Systems AquaController, EB8, Display,NIB Agrowtek SX-PH, Aqua Bus,Wifi

System tested and performs as it should. All outlets are operable. The Agrowtek/Sensorex S150C/10/BNC is a durable, low-maintenance, light-duty, single-junction polycarbonate pH electrode designed for general laboratory use, hydroponics, swimming pools, and aquarium monitoring.

Tunze Multicontroller 7095 Aquarium Pump Flow/Wavemaker Controller

The Tunze Multicontroller 7095 is an analog controller designed for aquarium pumps, specifically for controlling pump flow and creating wave movements in the water. It is suitable for all water types and is ideal for maintaining a healthy and balanced environment for fish and other aquatic animals. With its reliable Tunze brand and model, this controller offers precise control over the water circulation in the aquarium, ensuring optimal water quality and flow for the well-being of aquatic life.

Milwaukee MC110 Professional pH Monitor for Aquariums

Milwaukee MC110 PRO pH Monitor perfect working condition. The pictures are the best indication of the item's condition. Please examine them carefully and ask all the necessary questions to assist you in your purchasing decision. Item(s) pictured is the actual item(s) you will recieve. This item(s) is being sold AS IS. NO returns.

Bubble Magus Digital 3-Head Dosing Pump Controller Unit for Aquarium Dosing

Bubble Magus Digital 3-Head Dosing Pump Controller Unit for Aquarium Dosing

Neptune Apex Junior Classic Aquarium Controller with Display and LSM Module

Selling a Neptune Systems Apex Jr. Classic controller with four-outlet power bar (the Apex is built in to the power bar for the classic Junior model), Neptune Display Module and a Lunar Sim (LSM) module (no LEDs). Also includes the two temperature probes one to run and a spare. The LSM module is in its original packaging with a user guide and mounting hardware.

Neptune Systems PM2 Digital Module Controller Salinity Temp Conductivity

Neptune Systems PM2 Digital Module Controller Salinity Temp Conductivity

ProfiLux Mini WiFi Aquarium Controller Set w/Powerbar - Black - GHL

Great condition the listing is for the controller, power strip, and power supply. I recommend buying new sensors as sending used ones is not ideal and will most likely break or be offing readings. I will send the use ones AS IS and are not guaranteed or part of the purchase price of the list but hey it’s a bonus if they survive shipping.

Neptune Systems Apex Energy Bar 832 Model No. EB832 with AquaBus USB Cable

Neptune Systems Apex Energy Bar 832 Model No. EB832 with AquaBus USB Cable. The Neptune Systems Apex Energy Bar 832 is pre-owned and in excellent f unctional condition. We take great pride in properly representing each item that we have for sale.

Focustronic Alkatronic automated alkalinity (dKH) monitor for aquariums (READ!)

I already have an automatic tester and don't need this. It powers on and I can login to it. Just have no interest in it so I didn't bother getting the parts to get it working. Also possibly a new PH Probe.

Neptune Systems FS-100 1" Flow Sensor

The Neptune Systems FS-100 1" Flow Sensor is a digital controller designed for aquariums with a tank capacity of up to 200 gallons. It measures and controls the water flow, making it a crucial component for maintaining optimal water circulation in fish tanks. The FS100 model is compatible with all water types and is perfect for monitoring and controlling waves in fishtanks. With the trusted Neptune Systems brand behind it, this flow sensor ensures accurate readings and efficient water management for a healthy aquatic environment.

Neptune Systems I/O Breakout Box - Accessory for Apex Controllers (Sell As Is)

JBJ Nano ATO Advanced Automatic Top Off System Water Level Controller Pump Kit

Complete and ready-to-use JBJ Nano ATO Advanced system. Integrated JBJ Nano Float Sensor. with snail guard and mounting bracket (features the original blue JBJ logo sticker). Good pre-owned condition.

Apogee SQ-520 Smart Quantum Sensor Full-Spectrum USB PAR Meter

The Apogee SQ-520 Smart Quantum Sensor is a high-quality USB PAR meter designed for measuring light intensity in fish tanks and aquariums. With its full-spectrum sensor and smart technology, this device provides accurate readings to help you optimize the lighting conditions for your corals. Never used. Please let me know if you have any questions.

Milwaukee MC122 pH Controller + MP810 Dosing Pump MC720 Kit Hydroponics

The Milwaukee MC122 pH Controller + MP810 Dosing Pump MC720 Kit is a digital controller designed for hydroponics systems. Made in the United States, this controller allows for precision control of pH levels in all water types. With its brand reputation for quality and reliability, this product is essential for maintaining optimal water conditions for healthy plant growth in hydroponic setups. The included MP810 Dosing Pump ensures accurate and efficient dosing of pH adjusting solutions, making it a valuable addition to any hydroponic system.

Hanna Instruments HI83226 Pool & Spa Multiparameter Photometer Tested Kit

• Model: HI83226. • MPN: HI83226. • Original Hanna hard carrying case. • Original Hanna carrying case. • Application: Pool & Spa Water Testing. • Tested and working properly. The item shown is the exact unit you will receive.