The Kidde 10 Year Long-Life Smoke & Carbon Monoxide Combination Alarm with 9V Battery is a combined detector, safeguarding you from two risks in one unit. You can easily install it in most locations around your home, mounting it to either a wall or ceiling.
This product features a voice alarm to inform you if smoke or carbon monoxide has been detected. It also has a hush control feature to silence nuisance alarms temporarily and a simple test/reset button for you to test the alarm function regularly.
The unit comes complete with a 9V alkaline battery that you can easily change through the front-loading battery compartment.