a system that includes at least one patient monitoring device and a central unit for receiving signals and alerting caregivers of alarm states can be reset at the patient monitoring device end utilizing the existing signaling mechanism . in the case of weight - change - triggered patient monitoring devices , such as bed or chair pads , when a caregiver or other user presses down and releases the top of the device in a pattern that conforms to certain time constraints , the patient monitoring device resets and exits the alarm state .