An alarm system designed to transmit a visible and audible alarm only on the immediate premises served by the system is known as which?

• A. Central Station Alarm System
• B. Local Alarm System
• C. Remote Alarm System
• D. Proprietary Alarm System

Answer: (B)

The main idea here is on-site notification. A local alarm system is designed to produce a visible and audible alert right at the property it serves, without sending signals to a monitoring service or off-site location. This means the alarm rings and signals on the premises to alert occupants and bystanders, but it does not transmit to a central station or remote monitoring center.

Central station systems are all about transmitting alarms to a monitoring facility that dispatches responders, which is not what’s described here. Remote alarm systems imply off-site transmission or monitoring, again not matching the on-site alert focus. Proprietary systems are owned and sometimes monitored by the building’s own staff or a private center, which can still involve off-site monitoring, so they aren’t defined by staying solely on the premises. Because the question specifies an alarm that remains on the immediate property and provides on-site audible/visual notification, the correct choice is the local alarm system.