Meters & Controllers
meters & controllers — pre-owned
Browse 291 meters & controllers — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
Neptune System EB832 Energy Bar 832 - FOR PARTS / AS IS - READ
Can't say for sure though. However my loss (and lack of knowledge) is your gain. Issue: Unsure the exact cause. This did not work when I got it. When plugged in theEnergy Bar 832 does not turn on.
Milwaukee MC122 pH Controller w/ Probe 0–14 pH 110V – Tested VG
The Milwaukee MC122 pH Controller with Probe is a digital device designed to measure and control the pH level of all water types in fish tanks and aquariums. With a reliable brand like Milwaukee, users can trust that this controller is tested and operates at high quality. The pH probe allows for accurate readings, making it easy to maintain suitable water conditions for fish and other aquatic animals. This tool is essential for ensuring the health and well-being of aquatic life in any aquarium.
Profilux Plus II controller with Salinity Card w/ Power Cord
The Profilux Plus II controller with Salinity Card is designed to measure and control salinity levels in aquariums. This controller is specifically meant for monitoring and maintaining the salinity of the water in fish tanks. It falls under the category of Meters & Controllers, making it an essential tool for fish and aquarium enthusiasts looking to ensure optimal conditions for their aquatic pets.
Hydor Smart Level Aquarium Tank Water Level Auto Controller WO895733
The Hydor Smart Level Aquarium Tank Water Level Auto Controller WO895733 is a high-quality controller designed by Hydor specifically for marine aquariums. Made in Italy, this model is known for its reliability and accuracy in regulating water levels in aquarium tanks. It is a convenient and essential tool for maintaining optimal water levels in your aquatic environment, ensuring a healthy habitat for your fish and other aquatic creatures.
Neptune Systems Apex A3 Base Unit Aquarium Controller
Apex A3 base unit shown in photos. Orange mounting bracket shown attached to the unit. Ports and product label are shown in the photos.
Neptune Systems Apex EB832 Energy Bar 832 Power Bar
EB832 Energy Bar unit shown in photos. No Aquabus cable, Apex base unit, probes, modules, mounting hardware, original box, manual, or other accessories are included unless shown. Attached power cord shown in photos.
Neptune Systems Apex DOS Dosing Pump & DOS Reservoir Combo
This also includes a matching DOS reservoir. Doser heads were flushed with RODI and are about 4 months old. Dosing heads have been upgraded to use 1/4" push-to-connect fittings The Neptune Systems Apex DOS Dosing Pump is a digital controller designed specifically for marine aquariums. Made by the trusted brand Neptune in the United States, this dosing pump is capable of accurately dispensing dosing solutions to maintain optimal water quality in your tank. With its advanced technology and precision, this product is essential for aquarium enthusiasts looking to provide the best care for their marine fish and coral.
Hanna Instruments Checker HC Marine Digital Colorimeter Phosphate Nitrate Lot.
Reagents: NOT INCLUDED/EXPIRED.
Seneye Reef Aquarium Monitor PAR LUX Kelvin Meter w/ Holder
No Seneye slides, Seneye Web Server, software account, subscription, original box, manual, or other accessories are included unless shown. Seneye USB device shown in photos. Light sensor window, USB cable, back icons, holder, and rods/accessories are shown in photos.
Neptune Systems LLS-15 15 Inch Liquid Level Sensor for Apex
Neptune Systems LLS-15 liquid level sensor shown in photos. Scale markings, Neptune Systems logo, part number, connector end, and mount detail are shown in photos. No Apex base unit, FMM module, mounting hardware beyond what is attached, original box, manual, or other accessories are included unless shown.
Neptune Systems LD-3 Optical Multi-Surface Leak Sensor for Apex
Neptune Systems LD-3 leak sensor shown in photos. Top housing, cable, plug, and bottom sensor surface are shown in photos.
Neptune Systems Apex APEXNG base unit + EB832 Energy Bar + probe holder/probes
Includes Apex APEXNG base unit, EB832 Energy Bar, Aquabus/power cables, probe holder, and probes shown in photos. System was removed from a working aquarium setup.
Neptune Systems Apex A3 Pro Base Unit with Temp ORP & Ph Probe and New Sensors
We take great pride in properly representing each item that we have for sale.
Neptune Systems SV-1 Solenoid Valve 24V DC for Apex
Neptune Systems SV-1 solenoid valve shown in photos. No Apex base unit, FMM module, tubing, mounting hardware, original box, manual, or other accessories are included unless shown. Label, cable, and push-fit valve fittings are shown in photos.
Neptune Systems SV-1 Solenoid Valve 24V DC for Apex
Neptune Systems SV-1 solenoid valve shown in photos. No Apex base unit, FMM module, tubing, mounting hardware, original box, manual, or other accessories are included unless shown. Label, cable, and push-fit valve fittings are shown in photos.
Neptune Systems Apex PM1 pH/ORP Probe Module Ph Orp
Used, in excellent like new condition Neptune Systems PM1 module.
Focustronic Alkatronic Alkalinity Controller
Pre own Focustronic Alkatronic Alkalinity Controller Remove from a working environment. Hoses not included.
Neptune Apex A2 Head Unit W/ Temperature Probe & 30’ Aquabus
Neptune apex a2 head unit. Comes with everything shown., works great.
Neptune Systems Apex Aquarium Controller Temp & pH w/ Energy Bar 8 Fish coral
Up for sale is my used Neptune systems Apex aqua controller that was running my tank for a little over a year. Everything that came original in the box is included. The Neptune Systems Apex Digital Aquarium Controller is a sophisticated device designed to monitor and control temperature and pH levels in all types of water. With its digital technology and reliable brand reputation, this model offers precise measurements and adjustments to ensure optimal water conditions for your aquarium. Additionally, the controller comes with 2 Energy Bar 8 units, providing efficient and reliable power supply for your aquarium setup. Perfect for fish tank enthusiasts looking to maintain a healthy and stable aquatic environment.
GHL P4 Aquarium Controller - ! READ Description !
Everything works except the wifi card is bricked after a failed firmware update so you are unable to connect it online/network. You should consider this to be an unable to get online when buying. Outlets, probes, cables, etc. .
Neptune Systems MOS Magnetic Optical Sensor for Apex
Neptune Systems MOS Magnetic Optical Sensor for Apex aquarium systems. Neptune Systems MOS magnetic optical sensor shown in the photo.
Neptune apex Power Bar
I am the second owner and have not been able to test this unit. I was told 3 of the outlets do not have the ability to be controlled. All the outlets have power, but the mentioned are always set to on. Priced to sell as is.
Neptune Systems Apex AquaController Screen Display Controller Module
The cable is otherwise intact and works as it should. We take great pride in properly representing each item that we have for sale.
Milwaukee MC120 Smart pH Meter Monitoring System
Its compact size and lightweight design make it easy to use and transport, while the white color adds a sleek look to any gardening setup. The system from Milwaukee is designed to help you maintain optimal pH levels for healthy plants and soil.
Neptune Systems Apex Lab Grade Ph And Orp Probe Mfg 2020
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.
1 Neptune Systems Apex Fluid Monitoring Module FMM
Neptune Systems APEX FMM Module, Used in good working condition. Shipped with USPS Ground Advantage.
Used Neptune Systems APEX Base Unit.
Used Neptune Systems APEX A2 Base Unit.. Condition is Used. Shipped with USPS Ground Advantage.
Used Neptune Systems Apex Temperature Probe Temp
Used probe but still works good. Condition may vary
Neptune Systems - WXM - VorTech Pump Control - Used
Working and in used great condition. The Neptune Systems WXM VorTech Pump Control is a digital controller designed for managing aquarium pumps with precision. As part of Neptune Systems' line of advanced fish tank equipment, this product is sure to enhance the efficiency and reliability of your aquarium setup. With its brand reputation for quality and innovation, the WXM VorTech Pump Control is an essential addition to any fish tank or aquarium system.
American Marine Pinpoint PH Monitor With Sensor And Long Cord .
I tested with several different liquids. It’s used but works fine.
You save $5.67
Adaptive Reef - 6 Way Apex Switch Toggle Box- used
The Adaptive Reef 6 Way Apex Switch Toggle Box is a unit designed for marine aquariums, specifically for controlling multiple devices or pumps in a reef tank setup. Made by the brand Adaptive Reef in the United States, this switch toggle box offers a convenient and organized way to manage various functions in a marine environment. With 6 way apex switch capabilities, this product provides flexibility and ease of use for aquarists looking to simplify their tank management system.
JBJ Automatic Top Off (ATO) System - Water Level Controller with Pump & Sensor
Complete and ready-to-use JBJ ATO system. Float Sensor with Snail Guard and mounting bracket. Power Adapter.
Neptune Systems Apex AquaController Base Unit Only
We take great pride in properly representing each item that we have for sale.
neptune apex base unit and 832 energy bar
Used and in great working order. Neptune Apex base unit and 832 energy bar. This unit does not come with any probes but has ports for the following probes: PH, salinity, orp and temp gage. Feel free to message me with any questions.
Neptune Systems - DOS Dosing and Fluid Metering System w/ Aquabus (PRE-OWNED)
(1x) AquaBus cable. Good for your tank & great for the planet. Upgrade your tank without draining your wallet. Get high-quality gear for less! Save Money & Enjoy More. Why Buy Pre-Owned?.
Kactolly Smart Pool Tank Water Testing Monitor Only
Pre-owned, in great working condition, nice and clean.
You save $9.60
Neptune Systems Apex Classic Base Unit Only
We take great pride in properly representing each item that we have for sale.
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.
hanna instrument HI 96724 Portable Photometer
Vendo fonometro per analisi precisa dell'acqua per piscina o sistemi di trattamento acque.
