BS-506/LITHIUM Battery operated smoke alarm Product InformationThe BS-506 is a battery operated smoke alarm with an optical sensor for installation in residential buildings, apartments and rooms. Smoke alarms are designed to provide an early warning of fire events giving enough time for people to evacuate the building/room. Always consult local regulations for smoke alarms. Horizontal TabsDocumentation User Manual BS-506 Brochure Declaration of Performance Certifications DEDAL