First Alert OLCOMBOV SmartBridge Wireless Interconnected Smoke/Carbon Monoxide Combo Alarm with Voice and Location
First Alert SmartBridgeTM battery operated combination Smoke and Carbon Monoxide Alarm offers the same interconnected functionality as standard hardwired alarms without wires. First Alert SmartBridge Voice Location Combination alarm is programmable with up to 11 locations in your home - when alarm sounds it will tell you the location of the smoke or carbon monoxide hazard so you can plan the best escape route from your home. The wireless feature allows multiple alarms to talk to each other - when one alarm sounds, they all sound. The wireless network operates on 914 MHZ 3 channels and will not interfere with other electronics. This SmartBridge alarm uses photoelectric smoke sensing technology which is especially sensitive to slow, smoldering fires and which reduces nuisance alarms often caused by cooking smoke or shower steam. The electrochemical CO sensing technology is the most accurate available. A low battery signal alerts you to replace the battery. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The AA batteries are easy to install in the convenient pullout battery drawer. Two AA batteries included. NOTE: These flexible alarms can be used as wirelessly connected home alarms (purchase alarms only) or can be integrated into the SmartBridge DIY Home Automation system so you can received email or text notification in the event one of the alarms sound while you are not at home (requires purchase of SmartBridge Gateway sold separately).