Which device provides 24-hour protection for home and commercial buildings, allowing video monitoring at any time?

The CCTV camera is the device specifically designed to provide continuous, round-the-clock surveillance of both residential and commercial properties. These cameras capture video footage, which can be monitored in real-time or recorded for later review. This capability allows property owners and security teams to keep an eye on premises at any hour, significantly enhancing security by deterring potential intruders and providing evidence in case of incidents.

In contrast, while fire alarm systems are crucial for detecting smoke and fire, they do not offer video monitoring features. Building remote controllers typically facilitate system management and automation functions but do not include video surveillance capabilities. Telephone monitoring cabinets serve communication purposes, enabling efficient use of telephone lines but are not intended for any form of video recording or monitoring. Hence, the CCTV camera stands out as the most effective option for achieving 24-hour video monitoring and protection.