Every room in the hotel will have this right above the bed, and there will be a small red light flashing. What is this?

1. With the increase of modern household fire and electricity consumption, the frequency of household fires is higher and higher. Once a family fire breaks out, it is easy to appear unfavorable factors such as untimely fighting, lack of fire-fighting equipment, panic of people present, slow escape and so on, which will eventually lead to heavy losses of life and property. The main cause of family fire is carelessness and failure to take preventive measures in time. Smoke alarm is an inductive sensor used to detect smoke. Once there is a fire danger, the electronic speaker inside will remind people in time.

2. The ion smoke alarm is more sensitive to tiny smoke particles and can respond to all kinds of smoke evenly; However, the front photoelectric smoke alarm is more sensitive to slightly larger smoke particles, but its response to gray smoke and black smoke is poor. When there is a raging fire, there are more fine smoke particles in the air, and when there is smoldering, there will be more slightly larger smoke particles in the air. If a large number of tiny particles of smoke are generated after a fire, the ion smoke detector will give an alarm before the photoelectric smoke detector. The time interval between the two smoke alarms is not long, but this kind of fire spreads very fast, so it is best to install an ion smoke alarm in this place. Another smoldering fire produces a large number of slightly larger smoke particles, and the photoelectric smoke alarm will give an alarm before the ion smoke alarm. It is suggested to install photoelectric smoke alarms in these places.