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Meters & Controllers | Surplus Network

Neptune Systems Aquarium Automatic Top Off Kit ATK
USA
Neptune Systems Aquarium Automatic...

$149.00 USD

Neptune Systems Aquarium Automatic...

$149.00 USD

Seneye Home Aquarium Monitor
USA
Seneye Home Aquarium Monitor

$149.00 USD

Seneye Home Aquarium Monitor

$149.00 USD

Neptune Systems Apex DOS Dosing Pump And DDR
USA
Neptune Systems Apex DOS Dosing Pump...

$399.00 USD

Neptune Systems Apex DOS Dosing Pump...

$399.00 USD

Auto Top Off Water Filler Refiller Water Level Controller for Aquarium with Pump
USA
Auto Top Off Water Filler Refiller...

$44.99 USD

Auto Top Off Water Filler Refiller...

$44.99 USD

Neptune Systems Apex PM2 Salinity Module With Conductivity And Temp Probe
USA
Neptune Systems Apex PM2 Salinity...

$155.00 USD

Neptune Systems Apex PM2 Salinity...

$155.00 USD

BREAKOUT BOX PLUS For Neptune APEX controller
USA
BREAKOUT BOX PLUS For Neptune APEX...

$35.99 USD

BREAKOUT BOX PLUS For Neptune APEX...

$35.99 USD

AutoTopoff Nano - Water Level Controller for Reef Aquarium - Auto Top Off ATO
USA
AutoTopoff Nano - Water Level...

$40.00 USD

AutoTopoff Nano - Water Level...

$40.00 USD

*NEW* AQUATEK Aquarium CO2 Regulator Mini with Integrated COOL TOUCH Solenoid
USA
*NEW* AQUATEK Aquarium CO2 Regulator...

$66.99 USD

*NEW* AQUATEK Aquarium CO2 Regulator...

$66.99 USD

Neptune Apex el With Trident And Extras!!
USA
Neptune Apex el With Trident And...

$900.00 USD

Neptune Apex el With Trident And...

$900.00 USD

Auto Aqua AWC And ATO
USA
Auto Aqua AWC And ATO

$100.00 USD

Auto Aqua AWC And ATO

$100.00 USD

NEPTUNE APEX CLASSIC BASE UNIT
USA
NEPTUNE APEX CLASSIC BASE UNIT

$100.00 USD

NEPTUNE APEX CLASSIC BASE UNIT

$100.00 USD

Neptune Systems Apex Controller System
USA
Neptune Systems Apex Controller System

$659.00 USD

Neptune Systems Apex Controller System

$659.00 USD

Neptune Systems Full Apex 2016 Controller with WiFi Brain Only
USA
Neptune Systems Full Apex 2016...

$340.00 USD

Neptune Systems Full Apex 2016...

$340.00 USD

Neptune Apex Classic Controller
USA
Neptune Apex Classic Controller

$180.00 USD

Neptune Apex Classic Controller

$180.00 USD

Wireless Neptune Apex Breakout Box w/ 2 Remotes
USA
Wireless Neptune Apex Breakout Box w/...

$69.99 USD

Wireless Neptune Apex Breakout Box w/...

$69.99 USD

Pinpoint American Marine ORP/REDOX Monitor ONLY
USA
Pinpoint American Marine ORP/REDOX...

$69.99 USD

Pinpoint American Marine ORP/REDOX...

$69.99 USD

Neptune Apex System Aquarium Controller/w WIFI, with Display Unit
USA
Neptune Apex System Aquarium...

$725.00 USD

Neptune Apex System Aquarium...

$725.00 USD

Neptune Systems DOS (For Use With Apex)
USA
Neptune Systems DOS (For Use With Apex)

$299.89 USD

Neptune Systems DOS (For Use With Apex)

$299.89 USD

Neptune Systems Apex Classic With Display, EB8, PH and Temp probe
USA
Neptune Systems Apex Classic With...

$309.00 USD

Neptune Systems Apex Classic With...

$309.00 USD

Breakout Box Special edition for Neptune APEX
USA
Breakout Box Special edition for...

$59.99 USD

Breakout Box Special edition for...

$59.99 USD

Seneye Reef Monitor
USA
Seneye Reef Monitor

$199.00 USD

Seneye Reef Monitor

$199.00 USD

ApexEL Controller - Neptune Apex Controller Wifi Model - Entry Level
USA
ApexEL Controller - Neptune Apex...

$499.95 USD

ApexEL Controller - Neptune Apex...

$499.95 USD

Brand New GHL Profilux Plus II Aquarium Controller
USA
Brand New GHL Profilux Plus II...

$125.00 USD

Brand New GHL Profilux Plus II...

$125.00 USD

Hydor Koralia Smart Wave Circulation Pump Controller
USA
Hydor Koralia Smart Wave Circulation...

$50.49 USD

Hydor Koralia Smart Wave Circulation...

$50.49 USD

NEW Apex FMM Flow Sensor 1 Inch(FS-100) With Unions - Neptune Systems
USA
NEW Apex FMM Flow Sensor 1...

$44.98 USD

NEW Apex FMM Flow Sensor 1...

$44.98 USD

AQUANEAT Aquarium Thermometer Digital Fish Tank Terrarium Water Temperature Test
USA
AQUANEAT Aquarium Thermometer Digital...

$5.95 USD

AQUANEAT Aquarium Thermometer Digital...

$5.95 USD

New Digital LCD Fish Tank Aquarium Marine Water Thermometer Temperature Black
USA
New Digital LCD Fish Tank Aquarium...

$5.95 USD

New Digital LCD Fish Tank Aquarium...

$5.95 USD

Osmolator 3155 Auto Top Off - Tunze
USA
Osmolator 3155 Auto Top Off - Tunze

$199.99 USD

Osmolator 3155 Auto Top Off - Tunze

$199.99 USD

HYDROS Control 2 Starter Pack Aquarium Monitor, Controller With App
USA
HYDROS Control 2 Starter Pack...

$199.99 USD

HYDROS Control 2 Starter Pack...

$199.99 USD

Hydor Smart Level Control ATO Auto Top Off Aquarium Reef Tank
USA
Hydor Smart Level Control ATO Auto...

$49.99 USD

Hydor Smart Level Control ATO Auto...

$49.99 USD

AMERICAN MARINE PINPOINT PH CONTROLLER - AQUARIUM WATER TESTER METER
USA
AMERICAN MARINE PINPOINT PH...

$188.99 USD

AMERICAN MARINE PINPOINT PH...

$188.99 USD

AutoTopoff Double - Water Level Controller for Reef Aquarium - Auto Top Off ATO
USA
AutoTopoff Double - Water Level...

$50.00 USD

AutoTopoff Double - Water Level...

$50.00 USD

Neptune Systems Apex Jr. Aquarium Controller And Temp Probe
USA
Neptune Systems Apex Jr. Aquarium...

$110.00 USD

Neptune Systems Apex Jr. Aquarium...

$110.00 USD

3PACK LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature New
USA
3PACK LCD Digital Aquarium...

$8.59 USD

3PACK LCD Digital Aquarium...

$8.59 USD

Complete ATO & Surface Skimmer for Sumpless Aquariums - XP Aqua
USA
Complete ATO & Surface Skimmer for...

$79.99 USD

Complete ATO & Surface Skimmer for...

$79.99 USD

Aquarium Digital Thermometer Fish Tank Salt Water Terrarium with Extra Battery
USA
Aquarium Digital Thermometer Fish...

$17.00 USD

Aquarium Digital Thermometer Fish...

$17.00 USD

Koralia Smart Wave Pump Controller - Hydor
USA
Koralia Smart Wave Pump Controller -...

$69.95 USD

Koralia Smart Wave Pump Controller -...

$69.95 USD

EPTTECH Aquarium Marine Reef Fish Tank Automatic Auto Top Off Water Filler Wa...
USA
EPTTECH Aquarium Marine Reef Fish...

$75.99 USD

EPTTECH Aquarium Marine Reef Fish...

$75.99 USD

fish tank aquarium thermometer glass mount suction cup floating temperature
USA
fish tank aquarium thermometer glass...

$6.99 USD

fish tank aquarium thermometer glass...

$6.99 USD

Neptune Apex Breakout Box with Lighted Switch, Push Buttons, Push Terminals
USA
Neptune Apex Breakout Box with...

$85.98 USD

Neptune Apex Breakout Box with...

$85.98 USD

Tunze Water Level Osmolator Nano 3152 Automatic Aquarium Water Top Off ATO
USA
Tunze Water Level Osmolator Nano 3152...

$99.99 USD

Tunze Water Level Osmolator Nano 3152...

$99.99 USD

American Marine Pinpoint Salinity Monitor w/probe
USA
American Marine Pinpoint Salinity...

$119.95 USD

American Marine Pinpoint Salinity...

$119.95 USD

1 Aquarium Fish Tank Thermometer Temp Sticker Stick on **FAHRENHEIT IN BOLD!**
USA
1 Aquarium Fish Tank Thermometer Temp...

$1.95 USD

1 Aquarium Fish Tank Thermometer Temp...

$1.95 USD

Aquarium Fish Tank Thermometer Sticker Reptile Temperature Stick-on Fahrenheit
USA
Aquarium Fish Tank Thermometer...

$1.95 USD

Aquarium Fish Tank Thermometer...

$1.95 USD

Milwaukee MC120 pH Monitor w/probe
USA
Milwaukee MC120 pH Monitor w/probe

$85.99 USD

Milwaukee MC120 pH Monitor w/probe

$85.99 USD

New Digital LCD Fish Tank Aquarium Marine Water Thermometer Temperature Black
USA
New Digital LCD Fish Tank Aquarium...

$6.29 USD

New Digital LCD Fish Tank Aquarium...

$6.29 USD

Neptune Systems Apex Classic Controller Orange Label Brain W/ Temp Probe
USA
Neptune Systems Apex Classic...

$120.00 USD

Neptune Systems Apex Classic...

$120.00 USD

Duetto Dual-Sensor ATO Aquarium Auto-Top-Off System - XP Aqua
USA
Duetto Dual-Sensor ATO Aquarium...

$119.99 USD

Duetto Dual-Sensor ATO Aquarium...

$119.99 USD

AQUANEAT Aquarium Thermometer Digital Fish Tank Temperature 6 PCS
USA
AQUANEAT Aquarium Thermometer Digital...

$17.89 USD

AQUANEAT Aquarium Thermometer Digital...

$17.89 USD

BREAKOUT BOX For Neptune APEX
USA
BREAKOUT BOX For Neptune APEX

$29.99 USD

BREAKOUT BOX For Neptune APEX

$29.99 USD

Neptune Systems Apex Jr controller and Display module Temp Probe
USA
Neptune Systems Apex Jr controller...

$159.90 USD

Neptune Systems Apex Jr controller...

$159.90 USD

NEW - FELIX SMART AQUARIUM MONITOR W/WIFI SIRI ALEXA & SmartApp IOS -W/ SENEYE
USA
NEW - FELIX SMART AQUARIUM MONITOR...

$449.00 USD

NEW - FELIX SMART AQUARIUM MONITOR...

$449.00 USD

Neptune Apex TRIDENT BRAND NEW & Sealed Box FREE FAST SHIPPING IN STOCK
USA
Neptune Apex TRIDENT BRAND NEW &...

$649.00 USD

Neptune Apex TRIDENT BRAND NEW &...

$649.00 USD

AQUANEAT Aquarium Thermometer Digital Fish Tank Temperature 2PCS
USA
AQUANEAT Aquarium Thermometer Digital...

$7.39 USD

AQUANEAT Aquarium Thermometer Digital...

$7.39 USD

Neptune Apex Breakout Box w/ Push Terminals and extra switch panel
USA
Neptune Apex Breakout Box w/ Push...

$32.99 USD

Neptune Apex Breakout Box w/ Push...

$32.99 USD

Aquarium Fish Tank Thermometer Temp Sticker Stick on **FAHRENHEIT IN BOLD!**
USA
Aquarium Fish Tank Thermometer Temp...

$4.99 USD

Aquarium Fish Tank Thermometer Temp...

$4.99 USD

Milwaukee MC122 pH Controller 115V, for CO2 Dosing/Monitor/Meter/Instruments
USA
Milwaukee MC122 pH Controller 115V,...

$130.00 USD

Milwaukee MC122 pH Controller 115V,...

$130.00 USD

Tunze Water Level Osmolator Nano 3152 Automatic Aquarium Water Top Off ATO
USA
Tunze Water Level Osmolator Nano 3152...

$80.00 USD

Tunze Water Level Osmolator Nano 3152...

$80.00 USD

Aquatop Floating Glass Aquarium Thermometer w/ Suction Cup Mount Free Shipping
USA
Aquatop Floating Glass Aquarium...

$6.95 USD

Aquatop Floating Glass Aquarium...

$6.95 USD

Neptune Systems Apex Classic Controller Orange Label Brain Only
USA
Neptune Systems Apex Classic...

$108.00 USD

Neptune Systems Apex Classic...

$108.00 USD

Neptune Apex TRIDENT in BRAND NEW & Sealed Box + FREE SHIPPING. IN STOCK
USA
Neptune Apex TRIDENT in BRAND NEW &...

$850.00 USD

Neptune Apex TRIDENT in BRAND NEW &...

$850.00 USD

DDR – DŌS Dual Reservoir - Neptune Systems Aquariums Free Shipping Sale
USA
DDR – DŌS Dual Reservoir - Neptune...

$229.99 USD

DDR – DŌS Dual Reservoir - Neptune...

$229.99 USD

AMERICAN MARINE PINPOINT ORP MONITOR INCLUDES PROBE & CALIBRATION FLUIDS
USA
AMERICAN MARINE PINPOINT ORP MONITOR...

$113.99 USD

AMERICAN MARINE PINPOINT ORP MONITOR...

$113.99 USD

Seneye SWS Web Server & WiFi Module And Seneye Reef Sensor Used/With Crack Works
USA
Seneye SWS Web Server & WiFi Module...

$175.00 USD

Seneye SWS Web Server & WiFi Module...

$175.00 USD

American Marine Pinpoint pH Controller & Monitor
USA
American Marine Pinpoint pH...

$65.00 USD

American Marine Pinpoint pH...

$65.00 USD

3X Aquarium LCD Digital Fish Thermometer Water Terrarium Black FREE Batteries
USA
3X Aquarium LCD Digital Fish...

$9.99 USD

3X Aquarium LCD Digital Fish...

$9.99 USD

Dual Aquarium Fish Tank Thermometer Temperature Sticker Stick-on Fahrenheit °F
USA
Dual Aquarium Fish Tank Thermometer...

$2.54 USD

Dual Aquarium Fish Tank Thermometer...

$2.54 USD

American Marine Pinpoint Digital ORP/Redox MONITOR With Probe, Box & Fluid
USA
American Marine Pinpoint Digital...

$76.00 USD

American Marine Pinpoint Digital...

$76.00 USD

Icecap Salinity/Temperature Digital Tester Saltwater Aquariums Refractomer NEW
USA
Icecap Salinity/Temperature Digital...

$64.99 USD

Icecap Salinity/Temperature Digital...

$64.99 USD

JBJ Automatic Top Off Water Level Controller for Aquarium
USA
JBJ Automatic Top Off Water Level...

$64.99 USD

JBJ Automatic Top Off Water Level...

$64.99 USD

American Marine Pinpoint pH Controller (WITHOUT PROBE) (ONLY CONTROLLER MODULE)
USA
American Marine Pinpoint pH...

$99.00 USD

American Marine Pinpoint pH...

$99.00 USD

Tunze RO Water Controller
USA
Tunze RO Water Controller

$150.00 USD

Tunze RO Water Controller

$150.00 USD

Aquarium ATO Auto Top Off System Smart Water Level Filler Pump Tank+2 sensors US
USA
Aquarium ATO Auto Top Off System...

$63.89 USD

Aquarium ATO Auto Top Off System...

$63.89 USD

Digital PH & ORP Redox Controller electrode Water Quality Meter Tester Aquarium
China
Digital PH & ORP Redox Controller...

$97.84 USD

Digital PH & ORP Redox Controller...

$97.84 USD

pH Probe
USA
pH Probe

$81.00 USD

pH Probe

$81.00 USD

Neptune Systems Apex Display Unit Module
USA
Neptune Systems Apex Display Unit Module

$74.90 USD

Neptune Systems Apex Display Unit Module

$74.90 USD

Aquarium Fish Tank Smart Water Level Controller Auto Off System Sen
China
Aquarium Fish Tank Smart Water Level...

$54.97 USD

Aquarium Fish Tank Smart Water Level...

$54.97 USD

Milwaukee MC125 pH/ORP Controller w/probe
USA
Milwaukee MC125 pH/ORP Controller...

$203.00 USD

Milwaukee MC125 pH/ORP Controller...

$203.00 USD

Aquarium Fish Tank Smart Water Level Controller Auto Off System Sensor Set
China
Aquarium Fish Tank Smart Water Level...

$54.36 USD

Aquarium Fish Tank Smart Water Level...

$54.36 USD

pH & ORP Redox Controller Water Quality Meter Tester Aquarium Hydroponics Tank
Hong Kong
pH & ORP Redox Controller Water...

$123.90 USD

pH & ORP Redox Controller Water...

$123.90 USD

Pinpoint pH Monitor. It Works Fine.
USA
Pinpoint pH Monitor. It Works Fine.

$35.00 USD

Pinpoint pH Monitor. It Works Fine.

$35.00 USD

3X Aquarium LCD Digital Fish Tank Thermometer Water Terrarium Black w/Batteries
USA
3X Aquarium LCD Digital Fish Tank...

$11.48 USD

3X Aquarium LCD Digital Fish Tank...

$11.48 USD

NEPTUNE APEX DOS DDR DIY 3
USA
NEPTUNE APEX DOS DDR DIY 3' CABLE + 2...

$44.55 USD

NEPTUNE APEX DOS DDR DIY 3' CABLE + 2...

$44.55 USD

Neptune Trident MARINE AQUARIUM ANALYZER (Brand New) + 2Mo Free Box of Reagents*
USA
Neptune Trident MARINE AQUARIUM...

$919.00 USD

Neptune Trident MARINE AQUARIUM...

$919.00 USD

Neptune Systems Aquarium Dosing Dual Reservoir (DDR) Fluid Metering System
USA
Neptune Systems Aquarium Dosing Dual...

$199.95 USD

Neptune Systems Aquarium Dosing Dual...

$199.95 USD

Aqua Controller Jr Controller Only
USA
Aqua Controller Jr Controller Only

$59.00 USD

Aqua Controller Jr Controller Only

$59.00 USD

SENEYE USB REEF V2 WATER MONITORING AMMONIA PH LIGHT TEMP LUX MARINE FISH TANK
United Kingdom
SENEYE USB REEF V2 WATER MONITORING...

$132.99 GBP

SENEYE USB REEF V2 WATER MONITORING...

$132.99 GBP

Neptune Salinity - Conductivity Probe - Lab Grade
USA
Neptune Salinity - Conductivity Probe...

$133.98 USD

Neptune Salinity - Conductivity Probe...

$133.98 USD

IceCap Liquid Dosing Containers
USA
IceCap Liquid Dosing Containers

$54.98 USD

IceCap Liquid Dosing Containers

$54.98 USD

Apex Controller Base Unit - Neptune Systems- free shipping
USA
Apex Controller Base Unit - Neptune...

$359.99 USD

Apex Controller Base Unit - Neptune...

$359.99 USD