Watchman Smoke Alarm and Wall Controller 5 Pack

This 10 year wireless interconnected smoke alarm can connect up to 22 alarms which provides greater protection and early detection throughout the home. When one alarm activates, all other connected alarms will activate. The alarm contains cutting-edge, split-spectrum technology. Split-spectrum allows the alarm to make more accurate readings inside th e sensing chamber by using two optical lights and wavelengths, and along with the additional insect mesh, helps reduce the potential of nuisance alarms caused from environmental factors. The alarm also contains a quick and automated pairing process and connects with the Watchman Wall Controller for simpler functionality. Smoke alarms are designed to be installed in bedrooms, dining rooms, living areas and hallways. The alarm is powered by a DC3V built-in lithium battery (non-replaceable) offering 10 years of battery life.