An alarm system that does not retransmit an alarm to any agency or group away from the premises is called a:

A local alarm is designed to alert people present in the vicinity of the alarm system, such as those in a building or immediate area, without sending notifications to external agencies or groups. This type of alarm typically consists of bells, sirens, or lights that activate in response to a triggering event, such as smoke, fire, or unauthorized entry.

The primary function of a local alarm is to create a loud auditory or visible signal intended to prompt an immediate response from those nearby, hopefully prompting them to take action, such as evacuating the area or contacting emergency services. Local alarms are often used in residential settings or small businesses where the presence of personnel is expected to respond promptly to the alert.

In contrast, other types of alarm systems like central station alarms and proprietary alarms are designed to communicate with central monitoring stations or specific entities for emergency response, thus distinguishing them from local alarms.