The Kidde KN-COSM-IBA uses breakthrough technology to offer a fast response to real fires， including smoldering and fast-flaming， as well as protect you from carbon monoxide and dramatically reduce the chance of nuisance alarms. The Intelligent sensor technology combines the detection capabilities of an ionization smoke sensor – which is more likely to detect smaller， less visible fire particles， like those produced by flaming fires – with that of an electrochemical sensor， which is used to detect CO. Since carbon monoxide is present in all fires， having both detection chambers work together in one alarm is a breakthrough in the fire safety industry. When either sensor notices a potential hazard， it will communicate with the other. Depending on what is detected， the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarm’s overall performance in all fires， and significantly reduces the potential for a nuisance alarm.

Product Features:

• AC Hardwired with Front Loading Battery Door-Replace the backup batteries without disconnecting from mounting bracket
• HushTM Feature-Silences nuisance alarms for approximately 9 minutes. (Smoke must be present before HushTM is activated)
• Battery backup (2-AA batteries included) provides protection in case of power failure.>li> Voice Warning indicates the presence of smoke or carbon monoxide to allow your family to escape safely. Warns ""Warning Carbon Monoxide"" or ""Fire! Fire""