2022-08-16 A fire detector is one of the most important means of preventing fires. Its function is to generate an alarm when a large amount of smoke causes a fire. A home smoke detector consists of four parts: a sensor, a speaker, a battery unit (or connected to a wire), and a circuit board. (A backup battery
Read More 2022-08-08 The creation of smoke detectors is of great relevance to human society. This is mainly because, in the old days before smoke detectors were commonplace, large fires in many places spread. After all, no one noticed when the fire was just starting and did not deal with it in time. Smoke detectors, on
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