First Alert 1039787 Smoke and Carbon Monoxide Alarm, Photoelectric Sensor, Twist-lock, White

The First Alert PRC700V battery operated smoke and carbon monoxide alarm with voice and location has a slim profile, designed to blend more fully into the wall and out of sight. It offers the same functionality you expect from First Alert with a new design that takes up less space. The battery-operated smoke and carbon monoxide detector alerts you to possible smoke or carbon monoxide and can be installed anywhere, no wires required.