Smartwares 5 Year Battery Optical Smoke Alarm Twin

This smoke alarm has a replaceable 5-year battery. The alarm uses an optical sensor and has a loud alarm of 85 dB at a 3m distance. The hush function allows you to decrease the sensitivity level of the alarm for 10 minutes. Protect yourself and your family by acting fast when a fire occurs. This smoke alarm is equipped with a test button for easy testing. A low battery indicator alerts you when the battery needs to be replaced.