First Alert PC900A Smoke And Carbon Monoxide Alarm Combo, White ChristmasLighting Small rubber feet for stability

Small rubber feet for stability and to reduce vibration

Quick blade change dial

Battery type : Lithium-ion

Lightly sand surface

Uses four medium-base light bulbs

First Alert PC900A Smoke And Carbon Monoxide Alarm Combo, White ChristmasLighting Small rubber feet for stabilityHighlights: Color: White Photoelectric Battery Powered 4. 92" x . 96" x 4. 92", . 56 pounds. Versatile wall or ceiling mount, slide in mounting bracket 2 in 1 protection, combination smoke and carbon monoxide alarm Patented smoke entry system nuisance free technology New slim design wall or ceiling Battery operated included Power LED and Alarm Indicator Mute Silence Button End of life signal Designer series Thin design