As the name suggests, the smoke detector is one of the most important device that detects the presence of smoke, normally in case of fire. It either detects it through physical process known as Ionization or optically known as Photoelectric.
Both of these detector types have their own pros and cons. However, most of the modern smoke detectors make use of both the technologies in order to detect smoke. These days, most of the homes have smoke detector systems connected to the home security systems.
Difference between Local and Monitored smoke detector
Once the smoke detector detects smoke, there are generally two ways in which it can be handled. One is local alarm while the other is monitored alarm. While the local smoke detectors are normally battery operated that connects to the homes’ 120V circuit, the monitored one is connected to the fire alarm or homes’ security system.