First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and CO Alarm with Slim Profile Design Size:1 in H x 5.67 in L x 5.67 in W label darkens if fuse has

label darkens if fuse has opened

spray modes include

Easily install the SMCO210 10-Year Battery Combo Smoke and CO Alarm for reliable 2-in-1 protection against both threats in a single alarm

Water Based

Its thick formula fills gaps in large diameter pipe and loose-fitting joints and is easy to apply

First Alert SMCO210 Sealed 10-Year Battery Combo Smoke and CO Alarm with Slim Profile Design Size:1 in H x 5.67 in L x 5.67 in W label darkens if fuse hasThe First Alert SMCO210 Sealed 10 Year Battery Combo Smoke and CO Alarm with Slim Profile Design uses First Alert's Precision Detection advanced sensing technology and meets new industry standards. This 2 in 1 alarm provides convenient protection against both fire and carbon monoxide (CO). The alarm is also equipped with a 10 year sealed battery to eliminate the need for battery replacements and low battery chirps. First Alert's Precision Detection