Features:Automatically turns pumps on and off to regulate liquid level automatically.Emergency High Level Alarm in case the level overfills, a separate float switch dedicated to over.Loud 103dB warbling tone cuts through the loudest industrial noise.Rugged. Built for rough, wet and corrosive environments. NEMA 4X rating.Reliable. Floats are protected inside a pipe and completely screened in.High capacity. 15A relay will control up to 1/2 HP at 120V.Floats can be easily wired to screw terminal blocks.Versatile. Switch between pump-down or pump-up operation.The LC3 Level Controller will automatically cycle your pump to keep your tank filled, or empty if that's how you set it. To switch between to pump-down mode, simply remove a circuit board jumper.If there is a problem that causes the liquid level to rise above the high level-control float, or fall below the low-control float, extra "emergency" floats causes an alarm. This alarm is given with a flashing LED and loud warbling buzzer that can be heard through any industrial plant noise. The emergency alarm float is also a redundant relay shutoff.The audio buzzer has a silence button that with a 30 minute snooze alarm if desired so the alarm won't be forgotten.The LC3 Pump Controller has an electronics box that mounts on the wall. The adjustable level probes are quickly installed and working by adjusting the depth of the high and low float with the thumb screws. There is at least 6 inches of adjustability in each pipe. The standard high level pipe is 8 inches long.Has Polypropylene pipe and float. Stacked floats spaced 1" apart. Therefore there are only two pipes containinga total of 4 floats.