Which piece of equipment would not typically be found in fire-fighting gear?

A smoke detector is primarily used to detect smoke and alert occupants to the presence of fire, making it a crucial safety device in homes and buildings. However, it is not considered a part of fire-fighting gear itself. Fire-fighting gear typically includes equipment specifically designed for active fire suppression and protection against fire hazards, such as fire extinguishers, CO2 bottles, and fire blankets. These items are utilized by firefighters while engaged in combating fires, providing the necessary tools and protective measures. In contrast, a smoke detector serves a preventive role by detecting smoke and signaling for evacuation or firefighting efforts, rather than being an operational tool during active firefighting.