... ) It allows AC power adaptor operated with battery backup for power loses.• 9-volt battery operated• allows the connection of a Cordless ... Alarm for Bed, Chair,door,window,floor• Alarm, Low Battery, and monitoring indicator LEDs show status• Optional alarm delay of ... flash notifies staff when monitor is operational• Audible &Visible low-battery alert• Bed, Chair, Wheel chair and Wall mount options ...