Sewage/Septic High Water Alarm 120 V — Indoor/Outdoor with Sludge Boss 33 Foot Float, Mercury‑Free Honeywell Microswitch

This 120 V high-water alarm for sewage and septic systems provides both visual and audible high-level alerts. Built and rated for indoor or outdoor installation, the unit includes a Sludge Boss float with a 33 foot cable. The float is mercury-free and uses a Honeywell microswitch to deliver dependable switching performance in wastewater applications.