SPI - Simplex Control Panel - 50A006-C20-NF The IM-540 is priced at

The IM-540 is priced at $919

Smart Alarm switch only

Structurally reinforced access ports eliminate distortion during installation and pump-outs

inside width:

SPI - Simplex Control Panel - 50A006-C20-NF The IM-540 is priced atNote: Image Shown is 50A001 Indoor alarm with audible and visual alarm, 15' mechanical alarm float, battery back up, 6' power cord, auxiliary dry contacts, SST pipe clamp, and quick snap terminal connectors (High Level) Red "alarm" light, green "on" light, and 85 decibel horn at 10ft Mechanical alarm float switch included (15' cord) Alarm test and horn silence button with auto reset 120 VAC The alarm will continue to work even when the primary power