Application of smoke alarm

User:JXCTUpload time:Feb 03 2023

How much do you know about smoke alarms?

In order to make buildings safer and avoid the probability of fire, most people have installed smoke alarms in buildings, but many people don't know much about smoke alarms. How to solve the beeping all the time? Formaldehyde exceeds the standard, and the smoke alarm sounds for no reason? In fact, this has nothing to do with formaldehyde and may involve a variety of reasons.

There are many types of smoke detectors, the most common of which are home smoke detectors, wireless smoke detectors and freestanding smoke detectors. Causes of beeping are as follows: Influence of water vapor and humidity during cooking, smoke, batteries, dust.


This is common and is usually a security measure. When the battery is dying, there will be a beep every minute or so (interval and sound vary by model, but all have a low battery warning feature), which some may interpret as a false alarm. When the battery of the smoke detector is low, the internal buzzer will beep every once in a while to remind you to replace the battery in time. As long as you replace the battery with a new one, the buzzer will not beep again. If your smoke alarm battery dies, purchase a new battery and follow the instructions for replacing it.

Most of the household use is an independent smoke alarm, which is characterized by battery power supply, does not need to be connected to the mains, and is very convenient to use. However, the battery power is limited, and the power will be insufficient if used for a long time, and the alarm will sound an alarm. Therefore, it is recommended that home users test the alarm once a week to ensure that it is in working order.

Mute or detect

Most smoke alarms on the market are equipped with a sound-cancelling feature. If the smoke alarm keeps going off and we want to turn it off, just press the silencer button. If there is no smoke, we want to see if the smoke detector is working, or press the silencer button to test. Find a mute or self-test button, press this button and it will stop ringing, but if the smoke alarm rings frequently when there is no smoke, then you must find out the reason for the smoke alarm ringing, check and deal with it, otherwise it may be Start later.


Standalone smoke alarms require no wiring and are battery powered. When the smoke concentration reaches a certain value, an alarm will sound for warning. Because the smoke particles from high-temperature cooking are so small that they are invisible to the human eye, many smoke alarms give false alarms about cooking fumes. Because the highly sensitive sensor inside the detector is sensitive to very small smoke particles. Steam or moisture can collect on the sensor and circuit board, and it will sound an alarm if there is too much condensed steam.

In addition, we also need to have a general understanding and correct judgment of the alarm flashing lights. If the diode flashes rapidly while alarming, the detector of the smoke alarm is operating and there may be smoke.

Smoke alarm installation location requirements

In order to minimize the occurrence of failure, the installation position of the smoke alarm is very important. When the smoke alarm is installed in some places with high temperature, high humidity, and a lot of oily smoke, it will increase the possibility of false alarms. For example, in the kitchen, if it is too close to the stove, it will increase the probability of false alarms. The correct course of action is to stay away from these places. Even important electrical appliances that are most likely to cause fires should be kept at a distance of 0.5-2.5 meters to reduce the possibility of false alarms.

Therefore, it is recommended to place smoke alarms in the living room and bedroom. The bedroom and the living room are two places with relatively high mobility of people, and the significance of calling the police is also relatively large. At this time, the real fire is coming, and it will remind you when there is smoke coming in.

In the kitchen, it is recommended to install the smoke alarm 3 meters away from the cooker. In the sleeping area, smoke alarms are installed within 4.5 meters, and everyone can hear the alarm even if the bedroom door is closed.

In general, as an alarm safety device for fire prevention in the living environment, smoke detectors can greatly protect the safety of people's lives and property. In order to make it work well, some regular maintenance and maintenance work must be carried out so that it can work normally and reduce the chance of false alarms. Don't be greedy for beauty and bring hidden dangers to your own safety.