First Alert Smoke and Carbon Monoxide Alarm Protect your home from the threats of smoke and carbon monoxide with this clever 2-in-1 combination alarm. As well as a loud 85dB siren, it's designed to reduce the amount of nuisance alarms when cooking. It also features a test button for weekly alarm testing, a hush button to silence the alarm and has a low battery warning for extra peace of mind. Smoke and Carbon Monoxide alarm 85dB Fixings included Requires 2 x AA batteries (included)
