The Wander Alarm with Motion Detector can prevent a loved one or patient from wandering away. It can detect the movement of a person in a bed, chair, room or doorway. A small receiver (remote monitoring device) can be mounted wherever convenient, and the chimes either sound or send a discreet signal up to 100 feet away.Wander Alarm with Motion Detector Features:Detector can be used on a bed, chair, hallway or door.Includes a receiver for remote monitoring.Can be set to chime at local alarm, or can send a remote signal to the receiver.Wander Alarm with Motion Detector Specifications:No batteries included, requires two 9 volt batteries (one for the sender, and one for the receiver).Receiver range up to 100 feet depending on building construction.When set to chime the alarm will sound at the sensor. When set toremote, a signal will be sent to the pager/receiver up to 100 feet away.