First Alert 10-Year Battery-operated Combination Smoke and Carbon Monoxide Detector PPG1120-7 Rated to 140°F and 200

Rated to 140°F and 200 psi

The dual brightness feature allows for the option of dusk-to-dawn accent lighting

Louver doors are made with strong

Both the AB-40 and A-41 have a heat resistant diaphragm and seat disc

Ratcheting feature allows the user to turn the driver without stopping to adjust wrist position

First Alert 10-Year Battery-operated Combination Smoke and Carbon Monoxide Detector PPG1120-7 Rated to 140°F and 200The 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