Certain tips need to be considered when choosing a fire alarm. Dual sensor alarms, photoelectric and ionization are the types of smoke detectors. Photoelectric and ionization technology are the kinds of methods used in the various kinds of alarms. Photoelectric smoke alarms use light as the main source which is aimed into sensing chamber at an angle away from the sensor. The light onto the light sensor is defracted and reflected upon entering the chamber. When smoldering fires occur, photoelectric alarms are the used to detect these kinds of fires. When there is buildup of dust in the photoelectric alarm the alarm is set off easily.
Small particles of smoke from fast flaming fires are detected using ionization alarms. This is a big difference compared to smoldering fires that release large particles. Ionization alarms use the working principle of holding a small amount of radioactive material between two electrically charged plates that ionizes the air and creates a current between the plates. When the smoke enters the chamber it disrupts the current and activates the alarm.
A false alarm might be raised when the smoke produced by burnt food or by steam from the shower triggering the ionization smoke alarms. The most unsuitable place for placing an ionization smoke alarm is the kitchen or bathroom.
The ionization and photoelectric sensors are combined into one unit to result to dual sensor smoke alarms. Delay in alert sounding is resulted in dual sensors as some models require both sensors to go off. Only one sensor is required to tripped in order to sound the alarm in other models of dual sensor smoke alarms.
In order to invest on a fire alarms, things such as digital carbon monoxide display, silence buttons and interconnectability are considered. Alarms need to have a flashing light as part of the smoke alarm’s warning system for the purposes of those whose hearing is impaired. A fire alarm that has a safety light that provides illumination in the dark is recommended.
In terms of interconnectability, fire alarms are linked to carbon monoxide detectors as when the fire sprouts the alarm is immediately triggered. Its quite important to link carbon monoxide detectors with fire alarms as some home are of multiple levels.
Instead of disabling the whole unit of the alarm there should be a silence button. Sounding of the alarm again can be done when triggered and silence buttons are just temporary measures. Silence buttons present in a fire alarm is not a factor of concern. The overall home safety is ensured by digital carbon monoxide detectors.