First Alert SC7010BV Smoke & Carbon Monoxide Alarm With Voice, 120 Volt Spiral Cut-out Accessories Simply position and lock in

Simply position and lock in place

Simple instructions

Galvanized steel - standard

Accommodating for fuller plants

60 deg right super-accurate and durable design

First Alert SC7010BV Smoke & Carbon Monoxide Alarm With Voice, 120 Volt Spiral Cut-out Accessories Simply position and lock inHighlights: First hardwired talking smoke carbon monoxide combo alarm with photoelectric smoke sensing 120V AC with 2 "AA" battery back up 60 HZ Photoelectric smoke sensor Electrochemical CO sensor 85 db horn and patented voice warning with location programming Alarm and low battery latch Single button silences nuisance alarms and low battery warning Mounts to any electrical box up to 4" size Note: Restricted in massachusetts, Vermont state