The Sea Side Aquatics Magnetic Float Switch Sensor is a compact, reliable water-level sensor designed for aquariums, sumps, refugiums, and ATO (Auto Top-Off) systems. Built with an exceptionally strong magnet that holds securely through glass or acrylic up to ¾″ thick, this sensor stays firmly in place while delivering consistent and accurate water-level detection. Easy to install and compatible with most controllers and DIY ATO setups, this float switch is ideal for hobbyists and professionals who need dependable, long-lasting operation. Key Features Magnetic float switch sensor for water-level monitoring Super-strong magnet holds through up to ¾″ thick glass or acrylic Perfect for ATO systems, sump water-level control, alarms, and automation Quick and easy installation—no drilling required Compatible with most aquarium controllers and DIY setups Reliable, durable design for freshwater and saltwater systems
