What is a fire detector

Fire detectors are an important component of various automatic fire alarm systems and are the "sensory organs" of fire alarm systems. Its role is to monitor whether there is a fire in the environment. Once a fire occurs, the characteristic physical quantities of the fire, such as smoke concentration, temperature, gas and radiation intensity, are converted into electrical signals and sent to the fire-fighting fire automation controller. There are many kinds of fire detectors, which can be classified into smoke detectors (ion smoke detectors, photo-electric smoke detectors, and linear infrared beam smoke detectors), temperature detectors (fixed-temperature detectors, differential temperature detectors). Detectors, differential temperature detectors, and temperature sensing cable detectors, flame detectors (UV flame detectors, infrared flame detectors, and red-UV composite flame detectors), smoke-sensing temperature composite fire detectors, and flammable gas detection Device.