A smoke detector is a device that detects smoke. Smoke usually indicates fire. This is not always the case and when there is no real fire they can be responsible for several false dangers. These devices can only be of a local type where they are installed to notify anyone in the vicinity of the smoke detectors. The detectors can also be connected to a control panel that can be used to sound the alarm throughout the building. Such systems may notify authorities if the system is monitored by an outside agency.
Local only smoke detection
Usually the only local detector is a battery powered device. These are to detect smoke to alert occupants in the house and sound an internal siren inside the device. They are not intended to alert anyone other than employees nearby. They also have the ability to make a small scream when the battery is low. It is difficult to hear the sound of low battery at the time of emission so it is better to change your battery every year. Getting your smoke detector checked regularly is also a great idea. It is estimated that 30% of home smoke detectors have dead batteries and provide no protection in the event of a fire.
Observed smoke detection
A detector is installed in your home that is only local if you have an identifier connected to a fire alarm system that will not only protect occupants but also your property and belongings. The alarm sounds when a monitored system is triggered by smoke and will also notify your monitoring agency. The monitoring agency will alert the fire department. Adding a new control panel may add a detector to your security system. Residential home protection panels are designed to work with wired and wireless detectors. Many homeowners choose the cost of installing smoke detectors based on the cost that a fire will cause much more damage than a burglar.
How smoke detectors work
Detectors are usually a disc-sized plastic enclosure about an inch in diameter. There are different sizes by different manufacturers but it is common size. Most detectors operate using optical detection (photoelectric) or a physical process (ionization). The preferred type of photo in residential applications is electronic. Photoelectric identifiers respond quickly (usually 30 minutes or more) to ignite a fire in its early, smoldering stage (before it breaks into flames). The smoldering smoke of fire is usually composed of large combustion particles.
Commercial smoke detectors
A detector installed in a commercial environment is always connected to the fire alarm panel. Different types of smoke detectors are available. A detector can be wired and can be part of a zone. Each zone can have multiple detectors connected so only one area is indicated when a fire is detected. Exact location not known. More recent fire alarm systems have addressable smoke detectors. These are also wired but each of them has a different ID. When one of these detectors smokes, the fire department is notified free of charge and the exact location is known to the fire department. This helps the fire department to respond to the fire.