KIDDE illuminated activated extinguishing sign for use with fire extinguishing control panel, plastic enclosure. 90db buzzer. high led light output, 3 interchangeable inserts: fire alarm, evacuate the area and extinguishing in progress. supply voltage: 24vdc (from 20vdc to 30vdc), low current consumption. sound output level of 90dba, dimensions 305x115x40 mm