As used in this chapter, the following terms shall have the meanings indicated:
Any mechanism, equipment or device designed to transmit an audible alarm to the exterior of a dwelling or other building.
Any mechanism, equipment or device designed to transmit to others, including but not limited to private alarm services, notice of intrusion or other emergency.
Any mechanism, equipment or device which is designed to operate automatically through the use of public telephone facilities to transmit a signal, message or warning to another location.