The CoralVue Electronic Float Switch with 1 Outlets is a high-wattage device designed to automatically control water levels in your saltwater aquarium or sump. This versatile float switch protects expensive pumps from burning out, whether it's managing your auto top-off system to maintain stable salinity or preventing overflows in your protein skimmer's collection container. It provides essential automation for critical water level management tasks. Engineered for high amperage applications, this float switch can handle multiple pumps with a combined draw of up to 5 amps. Its innovative design allows for operation in both high or low water level scenarios, with the ability to easily change its on/off setting by simply inverting the barrel float after removing the retaining ring. Each unit is electronically built for the safety of both the user and marine livestock, and includes a 6-foot grounded power cord and a durable probe-style switch. This product is an indispensable tool for any reef aquarist seeking to enhance the stability and safety of their system through reliable automation. It is particularly beneficial for those running auto top-off systems, protecting return pumps, or needing an early warning system for skimmer collection cup overflows. By preventing common issues like pump damage or significant salinity swings, the CoralVue Electronic Float Switch offers peace of mind and simplifies routine aquarium maintenance.