Smoke Detectors

Smoke Detectors

Smoke detectors are widely used everywhere, typically in our homes, in the hotels, on the cars, trains, and planes. Once smoke is detected, the alarm will be triggered and procedures are taken.

 

A smoke detector is used for sensing smoke. The smoke sensitive module on the detector is affected by the concentration of smoke in which the sensor sends corresponding signals to the main board.

Types of smoke detectors include ionization, photoelectric and ionization/photoelectric combination.

 

Ionization smoke detector is more sensitive to smaller smoke particles than the photoelectric type detectors. In a fire, the alarm triggering times between these two types are similar. But in a smoldering fire, when big particles are released, photoelectric detectors are triggered earlier.

 

Because of time efficiency and small size, smoke detectors are widely used in forming an alarm system in public facilities or residential homes. Most detectors will include buzzers in them as well. Buzzers will effectively wake up those who are in a deep sleep when a fire starts.

 

In the alarming system, gas sensors and smoke detectors usually work together to give more accurate and efficient results. For example, in fire detection, CO sensor and smoke detector are combined in use. The appearance of CO is a sign of fire in its early stages. Normally CO concentration in the air is quite low; therefore in the beginning of a fire, incomplete combustion produces larger amounts of CO. This detection combination is useful to capture the sign of fire.

 

Environmental air monitors are also an alarming system when certain pollutants exceed the safety limit. Ambience Data air monitors equipped with pollution threshold and an alarming system will greatly help people to manage their indoor or outdoor air pollution. 

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