First Alert Onelink Wireless Interconnected Smoke Alarm SA501CN-3ST

First Alert Onelink Wireless Interconnected Smoke Alarm SA501CN-3ST Review

First Alert Onelink Wireless Interconnected Smoke Alarm (Sa501cn3St). Allows alarms to talk with each other When one alarm sounds all alarms will sound Install in bedroom, hall, basement 914 MHZ 3 channels (special code will not interfere with portable telephone computers, etc.) Includes 2 "AA" batteries Single test/silence button Intelligent sensor reduces nuisance alarms Photoelectric smoke sensor Microprocessor automatically performs internal test 10 year warranty