You are here: Home > ELECTRONICS > Auto Top Off Controllers

Auto Top Off Controllers
Sort By:
Page of 1
Aqua Medic Level Sensor for the AT-Control System
Aqua Medic Level Sensor for the AT-Control System
Our Price: $51.69
In Stock

Aqua Medic Level Sensor for the AT-Control System

Aqua Medic Niveaumat Replacement Float Switch
Aqua Medic Niveaumat Replacement Float Switch
Our Price: $40.99
In Stock

Replacement Float Switch for Aqua Medic Niveaumat
Coral Vue FW110 High Amperage Float Switch
Coral Vue FW110 High Amperage Float Switch
Our Price: $72.99
In Stock

The Coral Vue FW110 High Amperage Float Switch will operate for high water or low water level applications. To change its (on or off) setting, simply remove the retaining ring and turning the barrel float upside down. This switch can handle multiple pumps with a combined amperage draw of up to 5 amps. Each switch comes with a 6 ft grounded power cord and probe style switch. This float switch can save you from burning out expensive pumps, be configured to a collection container for your skimmer or can be used for water top off.
  • Great as a part for a ATO
  • Extra insurance
  • Skimmer shut off switch
  • High amperage
  • Grounded power cord
  • Fuse
Coral Vue FW220 12v DC Float Switch w/ Pump
Coral Vue FW220 12v DC Float Switch w/ Pump
Our Price: $65.99
In Stock

The Coral Vue FW220 12v DC Float Switch w/ Pump automatically controls water levels in aquarium or sump.
  • Plug and play setup
  • Automatic top off of aquarium water
  • Keep salinity levels consistent
  • Comes with small flow pump
  • Simple operation
  • Low voltage
  • Equipped with mounting bracket
JBJ Automatic Top-Off (A.T.O.) Replacement Float Sensor
JBJ Automatic Top-Off (A.T.O.) Replacement Float Sensor
Our Price: $17.89
In Stock

Replacement Float Sensor for the JBJ Automatic Top-Off (A.T.O.) Water Level Controller
JBJ Automatic Top-Off (A.T.O.) Water Level Controller
JBJ Automatic Top-Off (A.T.O.) Water Level Controller
List Price: $137.95
Our Price: $92.99
You save $44.96!
In Stock

The JBJ Automatic Top-Off (A.T.O.) Water Level Controller is a professional grade product that automates refilling evaporated water. The All-New A.T.O (Automatic Top Off) device is the most advanced water level controller system on the market. Lifting heavy buckets and spilling water is now a thing of the past. Maintaining stable salinity and specific gravity are no longer a problem since the A.T.O. will refill as soon as the water level drops. The A.T.O. will keep all salt levels at consistent parameters, ensuring an optimal environment for your tank inhabitants.

NOTE: Does not include a pump. We recommend using a Maxi-Jet powerhead as these pumps can be turned on and off constantly without burning. The recommended Maxi-Jet will depend on the amount of head pressure with your particular application. Do NOT use for kalkwasser dosing. Kalkwasser dosing should be done with a peristaltic pump as they will not clog.
Smart ATO Automatic Top Off System
Smart ATO Automatic Top Off System
Our Price (price includes free shipping!) $149.99
In Stock

The Smart ATO Automatic Top Off System is a unique auto top fff system with a patent pending contactless digital sensor that monitors and automates refilling evaporated water. Best of all it is very easy to install and contains no moving parts that can fail. This ATO comes integrated with AFS (Auto Feedback Security) technology which provides real-time fail safe protection against failure. You simply move the outside controller to adjust your sump to a desired water level. Its that easy.

  • Everything you need is included:
    • Controller/Sensor
    • Power adapter
    • DC brushless pump (6.5 max head, 74 gph)
    • 6.5 ft of water tubing with universal holder
  • Impossibly small & compact
  • Contactless optical water level sensor
  • Smart AFS(Auto Feedback Security) Technology
  • Safely keep water & salinity levels (in marine aquariums) stable
  • Adapts to most aquarium/sumps with walls up to 1/2 inch
SpectraPure Liquid Level Controller
SpectraPure Liquid Level Controller
Our Price: $99.99
In Stock

The SpectraPure Liquid Level Controllers are the most advanced means of controlling liquid levels on single reservoirs, and are ideal for replenishing evaporate water in aquariums or liquids in other constant level containers. An onboard air pressure activated electrical switch opens a solenoid valve when the liquid level drops approximately 1" and closes it when the liquid level rises back to its original level.

Features:
  • LLC-S-115
  • For use up to 90 gpd (70 psi max). LLC kit with 1/8" valve (115V)
  • For automatic replenishment of evaporated liquid and liquid level control on single tanks, sumps or reservoirs
  • Safe low voltage operation
  • Automatically turns off in the event of a power failure
  • Longer membrane & filter life
  • 5 feet of Remote sensor tubing provided (custom lengths available)
  • Additional switched 24 volt AC outlet for controlling booster pump or other 24 volt AC operated devices
  • Safety backup float
SpectraPure Multi Tank Liquid Level Controller
SpectraPure Multiple Tank Liquid Level Controller
Our Price (price includes free shipping!) $164.99
In Stock

SpectraPure Multiple Tank Liquid Replenishers are the most advanced means of controlling liquid levels on single or multiple reservoirs and are ideal for replenishing evaporated water in aquariums or liquids in other constant level containers. A sensitive air pressure switch opens a solenoid valve when the liquid level drops approximately 1" and closes it when the liquid level rises back to its original level.
  • For automatic replenishment of evaporated liquid and liquid level control on multiple tanks, sumps or reservoirs
  • Safe low voltage operation
  • Automatically turns off in the event of a power failure
  • Longer membrane & filter life
  • 5 feet of Remote sensor tubing provided (custom lengths available)
  • Additional switched 24 volt AC outlet for controlling booster pump or other 24 volt AC operated devices
  • Safety backup float
SpectraPure Power Liquid Level Controller
SpectraPure Power Liquid Level Controller
Our Price: $54.99
In Stock

The SpectraPure Power Liquid Level Controller uses a sensitive air pressure switch to energize or de-energize an AC outlet, which can be used to switch a power head or a 115 volt pump up to 3 Amps continuous duty. The unit can be set to turn a pump on or off with changing water level and is extremely useful for continuous water change systems.

  • LLC-PH
  • For automatic replenishment of evaporated liquid on systems which require AC electrical control
  • Controls up to 3 Amp continuous duty pumps and other 115 volt power heads
  • Extremely useful for continuous water change systems & other level control applications
  • 5 feet of Remote sensor tubing provided (custom lengths available)
SpectraPure Ultra-Precise Liquid Level Controller
SpectraPure Ultra-Precise Liquid Level Controller
Our Price (price includes free shipping!) $239.99
In Stock

The SpectraPure Ultra-Precise Level Controller holds your tank’s salinity constant while adding calcium or other nutrients in small doses. The UPLCT has a precise control within 0.50". The pump used in the UPLCT is the same pump that is in the LiterMeter III, the leader in aquatic dosing for over 10 years.
  • Comes with long life peristaltic tubing
  • Easy to position pump head in all four directions
  • Quiet and reliable peristaltic pump ever made
  • The highest lift of any top-off system. Can pump liquids with over 50 ft of lift.
  • No Back-Flow Problems. Intrinsic check valve operation to prevent accidental back flow
  • Back-Up Fail Safe. Comes with separate back-up overflow protection switch
  • Ultra Reliable Level Detector. Precise control within .050".
  • 5 Year Limited Warranty
  • Includes the peristaltic pump tubing