Fire Sensors
Most security systems also contain devices for the detection of fire conditions. Smoke detectors are most commonly used and are sensitive enough to detect the gaseous products of combustion before flames are ignited, thus affording excellent early warning protection. Other devices include: heat detectors, rate of rise detectors, sprinkler systems, Halon systems, etc.
The combination of these devices will provide you with protection and advanced notification against the potentially deadly destruction of fire.