Smoke detector is important when it comes to fire safety in your home. They are the first thing that will alert you to a fire or smoke in your home.
There are two main types of smoke alarms available on the market today, the ionization smoke detectors and photoelectric smoke detectors. If you are looking for online hard wired smoke alarm then make an online search.
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Ionization smoke alarms use a very small amount of radioactive material to ionize air in the ionization chamber. This space becomes conductive when it allows flow between two charged electrodes. When the combustion products such as smoke particles entering the room, indoor air conductivity is lowered. When the air conductivity lowered to a predetermined level, an alarm will sound.
Photoelectric smoke alarms consist of LED (light emitting diode) and a light sensitive sensor in the sensing chamber. If the products of combustion, such as smoke particles are found in the room they would cause the light to scatter and stop light from reaching the sensor, this in turn causes the alarm to sound.
As the two types of operating at two different sets of principles, they may respond differently to various conditions
Ionization alarms are more suitable for rooms containing highly flammable items that will create a flaming fire.