The LIQUID LEVEL CONTROLLER controls liquid level

automatically. Built-in alarms to detect overfill or low level. 

Level Controller with Solenoid Valve

Automatic Liquid Level controller…

  • Rugged. Built for rough, wet and corrosive environments. NEMA 4X rating.


  • Reliable. Floats are protected inside a pipe and completely screened in.


  • Adjustable depth. Both float switches can be adjusted with no tools.


  • Independently adjustable float depths.


  • Easy installation with a piggyback plug. Just plug in your pump up to 15A.


  • Versatile. Switch between pump-down or pump-up operation.


  • Emergency level alarms for high and low level with Loud 103dB buzzer.  Warbling tone cuts through the loudest industrial noise.


The Level Controller will keep tanks at the right level automatically, either filling or emptying.  In tank-filling mode, when the liquid level drops to the lower float switch, the pump controller turns on your pump to start filling. When the liquid level rises to the high level float, the level controller shuts off the pump. This simple cycle repeats automatically indefinitely to properly maintain your liquid level.


In addition to the automatic level control, the level controller includes emergency alarms. As reliable, our controller is, liquid level problems can still happen due to malfunctioning valves, solenoids, tank leaks, or operator errors. Therefore, to guard against spills or empty tanks, there are two floats reserved just for emergencies. (this makes a total of four float switches altogether) If the liquid level gets too high or too low, these “emergency” floats produce an alarm with a flashing LED and loud warbling buzzer that is designed to be heard through industrial plant noise. At the same time, the emergency alarm floats also provide a redundant relay shutoff.

When an emergency alarm sounds, the audio buzzer has a silence button with a 30 minute snooze alarm, so the alarm won’t be forgotten.


The pump controller is designed to be quickly installed and working in a few minutes with no tools.  After mounting, the level controller plugs into a standard power outlet.  Since it comes with a 120V piggyback plug, your pump can quickly plug into it. The output available is 15A @120V.

All our level controllers are easy to switch between pump-up and pump-down operation using a switch inside the enclosure.


The model LC2 on this page has the electronics enclosure mounted on a polypropylene pipe and is designed to be mounted at the tank. If mounting away from the tank is preferred then the model LC3 mounts on a nearby wall.

The standard depth we use for the high level pipe is 8 inches working depth. This depth can be easily adjusted as short as 2 inches just by loosening the thumbscrews.  This is good for most installation. The depth of the low level pipe comes in increments of 10 inches. Again, the depth is easy to adjust up or down.  No need to break out bolt-cutters to chop off metal probes!

Polypropylene models (LC2-PP) have stacked floats. The spacing between floats is 1 inch.

Kynar models (LC2-KC) do not have stacked floats but instead use a capacitance sensors.  These are ideal for dirty liquids that coat or crystallize on float switches. For more info please see our page on capacitance level controllers.

Level controller PVDF

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Polypropylene pipe and float switches.

Low Level Probe Length


Red Hat brand with 10 ft SJOOW (rubber jacketed) cord standard.  Comes wired to the timer.
Pipe size
Cord length if other than 10'
Mounting Options

Adapt to your tank from the 1″ NPT mount.

Mounting Type
Stainless solenoid valveSOLENOID VALVE – STAINLESS
US Solid brand with 10 ft SJOOW (rubber jacketed) cord standard.  Comes wired to the timer.
Motor StarterMotor Starter for Level Control

Motor starter allows the LC2 to control large pumps.  Three phase or single phase. Pre-wired to the level device. Specify your motor size.

[MS-motor size] 

Motor Size (HP)