First Alert® DC10-500 One Link Smoke & Carbon Monoxide Detector Alarm, White Clearance into a pre-drilled or pre-punched

into a pre-drilled or pre-punched hole

7/32" fastener crown length

Full-flo machined metal couplings

Highlights a timeless nostalgia for traditional versatility and sets a tone that is both classical and sensible

Closer for interior doors

First Alert® DC10-500 One Link Smoke & Carbon Monoxide Detector Alarm, White Clearance into a pre-drilled or pre-punchedIts protection at its finest. New slim design adds an element of style to safety. Half the size of the standard alarm with all the protection needed to keep what matters most safe and secure. App allows you to check history of alarms & monitor CO2 levels. You will be alerted to the type & location of danger & can call 911 directly from the app. Color: White Equipped with 2 "AA" batteries App allows you to check history of alarms & monitor CO2 levels