Photoelectric Smoke Alarm with Plug-In Line Cord, ADA Strobe and Battery Backup Black Lantern delivering performance worthy of a

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Photoelectric Smoke Alarm with Plug-In Line Cord, ADA Strobe and Battery Backup Black Lantern delivering performance worthy of aThe 7139LS is a 120VAC with 9VDC battery back up photoelectric smoke alarm designed to give reliable early warning of the presence of smoke where both audible and visual alarms are required. The 7139LS a 9 ft. plug in line cord for ease of installation in any space where a visual alarm is required. Fully insect screened. California residents see Prop 65 WARNINGS 120 VAC with 9VDC battery back up 90dBA temporal 3 evacuation piezo horn with 3100Hz