The AliMed PIR Cordless Alarm System with Over-Bed Mount is a simple, safe and dependable motion-detection technology to help manage patient care and fall prevention. The PIR Alarm works just like automatic motion-detection lights. When the beam is interrupted, the alarm is sounded. The PIR beam is narrow and fan-shaped so that only the bedside area is monitored. The alarm won't go off when staff members enter the room. These systems eliminate the hazards associated with cords tripping and accidental wire pulls are eliminated.FeaturesAlarm sounds at bedside Simple, safe and dependable motion-detection technology to help manage patient care and fall prevention Ideal alarm for restless patients that move around in bed Eliminates sensor pads that can get wet and cords that tangleInvisible beam monitors the side of the bedAlarm contains an on/off switch and can be set for either a chime or alarm sound When activated, alarm will sound for 30 seconds before automatically resetting itself9V battery and mounting materials included 1 Each / Each