Set includes one Fall Protection Monitor 1000 measuring 5" x 3.25" x 1" and one chair sensor pad measuring 10" x 15". This is a perfect caregiver alert solution for health care facilities and in-home caregivers. When a fall risk patient attempts to exit the chair, the alarm will automatically alert. When patient returns to sensor pad, the alarm will automatically reset and/or caregiver can manually reset monitor. With no on/off switch, the Fall Protection Monitor 1000 is always on and has a status light and low battery indicator..