传感器有温度传感器和烟雾传感器，分别检测温度浓度和烟雾浓度。当测量的温度或烟雾浓度高于临界值时，单片机将发送信号给声光报警模块产生相应的声光报警。当测量的温度或烟雾浓度低于临界值时，状态指示灯保持常亮，说明火灾报警器在正常通电工作。(Sensors include temperature sensors and smoke sensors, which detect temperature concentration and smoke concentration respectively. W