First Alert BRK Hardwired Smoke & CO Alarm, Photoelectric, AA Battery Backup, Voice (SMCO100V-AC)
$48.00
Hardwired 120V combination smoke and carbon monoxide alarm with photoelectric smoke sensing, voice and location alerts, and two AA batteries for backup. Interconnects with up to 18 First Alert and BRK alarms. Direct replacement for the SC7010B and SC7010BV. The lower-cost option when a 10-year backup isn't required.