Logicmark Guardian Alert 911 Battery Pack,Battery Pack,Each,30912Price: USD42.99 Logicmark Guardian Alert 911 Battery Pack is designed to be used with Logicmark Guardian Alert 911 System. This optional battery backup will allow the phone to operate during a power outage until the power comes back or up to 24 hours.Other products from H e a l t h P r o d u c t s F o r Y o u |