Smartwares 1 Year Battery Optical Smoke Alarm

This smoke alarm has a replaceable 1-year battery. The smoke alarm uses an optical sensor and has a loud alarm of 85db 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 sensor provides 10 year lifetime use. 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.