First Alert SCO500B OLCOMBOV Wireless Interconnect Smoke and Carbon Monoxide Combo Alarm with Voice & Location, Frust Free

Create wireless links with other smoke and carbon monoxide alarms with the press of a button. When one alarm sounds; they all sound providing you early warning of danger and allowing you to plan the safest exit path. Exclusive Voice Warning with Location will tell you the preprogrammed location of the initiating unit and danger detected. ProgrammIle up to 11 locations (ex. basement ). When alarms sounds, it will say Warning, evacuate, smoke in basement along with all other installed RF wireless interconnect alarms. ReliIle and secure radio frequency communication between alarms. 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping. Includes electrochemical sensor for accurate carbon monoxide detection. Photoelectric smoke sensor reduces nuisance alarms from normal smoke or steam. Single button test/silence for intuitive operation at the press of a button. End of life alarm signals when it s time to replace the alarm. Easy access to battery drawer on side of unit - no need to take down alarm to change battery. Operates on 2-AA alkaline batteries (included). Meets UL217 and UL2034 standards. Backed by 7-year limited warranty. *This product is intended for non-professional do it yourself installation. If you would like information Iout a professionally installed and monitored system, please contact First Alert Professional. First Alert Professional is not affiliated with BRK Brands, Inc.