Kidde Worry-Free Living Area Sealed Lithium Battery Power Smoke Detector Alarm | Model P3010L

Product Packaging:Standard Packaging Photoelectric smoke alarm contains a sealed in lithium power supply. No battery replacement required over the 10 year life of the alarm (as per manufacturer). Advanced photoelectric sensor detects particles associated with slow smoldering fires. Alarm automatically activates when attached to the mounting bracket. Test/hush button. End of life warning & end of life hush features included. Photoelectric smoke alarm contains a sealed in lithium power supply No battery replacement required over the 10 year life of the alarm (as pe manufacturer) Advanced photoelectric sensor detects particles associated with slow smoldering fires Alarm automatically activates when attached to the mounting bracket Test/hush button End of life warning & end of life hush features included UL listed Clamshell.