508GS1024GS

gs508SITERWELL ‎GS508 SMOKE ALARM USER MANUAL PHOTOELECTRIC SMOKE ALARM GS508C MG GS508C MG PRODUCT SPECIFICATIONS Power built in DC3V CR 2The SafeHome GS508 is a battery operated smoke detector which utilizes a photoelectric sensor. Photoelectric technology allows the detector to be more sensitive to detecting slow smoldering