First RA5816 Onelink Battery-operated Combination Smoke Carbon Monoxide Alarm With Voice Lo

Photoelectric sensor<br> Wireless RF interconnect<br> Reduces nuisance alarms<br> Eco-friendly<br> Uses electrochemical carbon monoxide sensor<br> Easy-to-use mute button<br> EZ-access battery door<br> Voice location announces where fire or CO is located<br> Includes 2 AA batteries<br> This product is intended for non-professional, DIY installation. If information is needed about a professionally installed & monitored system, please contact First Alert Professional at 1-800-921-6025. First Alert Professional is not affiliated with BRK Brands, Inc.<br>