First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

Brand: FIRST ALERTColor: WHITEFeatures: Superior carbon monoxide sensor and dual ionization smoke alarm Inter-connectable with BRK and First Alert hardwired smoke and carbon monoxide alarms Easy to install universal mount bracket Simple to use silence/test button; separate smoke and CO latching alarm indicators 9-volt battery included; 10-year limited warranty Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety Details: Features a dual ionization smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn and a “silence” feature. “Intelligent Sensing Technology” system is designed to reduce nuisance alarms. “Latching Alarm Indication” remembers which unit initiated an alarm. When interconnected in a series, the unit that triggered the alarm rapidly flashes its red LED indicator. After the alarm condition subsides, the initiating unit will store in memory or “latch” the information and begin to flash the LED indicator 2 sec