What type of alarm system provides continuous audible and visible surveillance of Level 1 and 2 systems?

The type of alarm system that provides continuous audible and visible surveillance of Level 1 and 2 systems is the Area Alarm System. This system is designed to monitor specific areas or environments continuously, ensuring that any changes in conditions or operational status are detected promptly.

Area Alarm Systems are particularly effective for environments where monitoring for safety and compliance is critical. They typically integrate various sensors and alerts that can be activated if certain thresholds are exceeded, thereby alerting personnel to potential issues immediately. This continuous surveillance capability helps maintain safety standards and allows for rapid response to any incidents.

In contrast, the other system types serve different functions. A Local Alarm System typically focuses on a single location or unit, while a Master Alarm System monitors several subsystems but may not continuously provide the same level of detailed surveillance for specific areas. A Critical Alarm System is generally reserved for life-safety applications and may not encompass the broader monitoring scope provided by an Area Alarm System.