Alarm signal means the activation of an alarm system .
Alarm system means any mechanical or electrical equipment arranged to signal an unauthorized entry or other illegal activity. Alarm system includes devices activated automatically, such as burglar alarms, and devices activated manually, such as hold up alarms. Alarm system does not include telephone lines maintained and operated by public utilities under the regulation of the public service commission over which such signals might be transmitted, or alarm systems installed in motor vehicles, boats, or aircraft. License means a license issued to an alarm business by the enforcing agency . Nonresidential alarm user means any alarm user that is not a residential alarm user.