Abstract: To monitor a patient, a combined allegator clip and switch is fastened to the patient by a cord having a length of between five inches and five feet. The other end of the cord is connected to a switch which is activated when the patient moves beyond the length of the cord to cause a message to be announced. If the allegator clip is removed, another circuit activates the alarm to play the voice message and provide an alarm to a caretaker at a remote station. The fastener is an alligator clip having first and second jaws and a spring for biasing said first and second jaws together, whereby said alligator clip may be fastened to clothing. When the jaws are separated by clothing, two conductors are separated but when the jaws contact each other, the conductors are closed to activate the voice message.

Abstract: To generate an alert signal indicating that an unauthorized subject is in a first region within seven feet of a passageway, a radio transmitter is worn by the subject and received by a receiver at the passageway. A second signal is generated upon satisfaction of a second condition, such as an open door at the passageway, which second signal indicates the likelihood of the subject passing through the passageway. A first display indicates if the first signal is present and a second signal if the second condition occurs.

Abstract: To generate an alert signal indicating that an unauthorized subject is in a first region within seven feet of a passageway, a radio transmitter is worn by the subject and received by a receiver at the passageway. A second signal is generated upon satisfaction of a second condition, such as an open door at the passageway, which second signal indicates the likelihood of the subject passing through the passageway. A first display indicates if the first signal is present and a second signal if the second condition occurs.