First Alert 10-Year Battery 2-Pack Battery-operated Combination Smoke and Carbon Monoxide Detector Model #LO10757 and stair layout square for

and stair layout square for what it does

Includes (3) CMZST065 0

Meets IAPMO

Each job goes more quickly and cleans up faster with less nuisance from airborne sanding dust

First Alert 10-Year Battery 2-Pack Battery-operated Combination Smoke and Carbon Monoxide Detector Model #LO10757 and stair layout square forThe First Alert SMCO210 10 Year Sealed Battery Combination Smoke & Carbon Monoxide 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). Also equipped with a 10 year sealed battery to eliminate the need for battery replacements and low battery chirps. Precision Detection technology