BATTERY SMOKE ALARMS
Dublin’s number one
smoke alarm
installer
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Battery smoke alarms have a choice of 9v alkane or 5/10 year lithium batteries
Battery Smoke Alarms
The battery-powered smoke alarm system uses the battery as the main power supply for its functionality. This kind of alarm is fitted with batteries which need to be replaced after every year. The alarm should also be tested at least every six months by simply pressing the test button to ascertain that the alarm is still functional. Additionally, when the battery gets low, the alarm goes off to give an alert. The sound is different from that given when smoke is detected. The alarm to indicate the low battery is an intermittent chirping sound. Alternatively, there are sealed battery alarms bought with an in-built battery meant to last 10 years. In this case, there is no need to worry about replacing the battery as it operates smoothly throughout. With this, the whole unit is replaced once the battery runs down. This alarm can be positioned in bedrooms, dining rooms, hallway, and living rooms. Fire Angel WI-Safe 2 alarm is designed for the deaf and young children and people mostly under the influence of drug & medications.
Several advantages are associated with the use of battery-powered smoke detectors. These types of alarms are not affected by fires that may affect the mains circuit resulting in the cutoff of the power supply. In this case, they will continue operating even after the electricity is cut off and do not need backup. Another advantage is the fact that they are not limited to where they can be located in the house. Given that they are not dependent on electricity, they can be located anywhere in the house and not necessarily in areas with electricity wire outlets. They are also cheaper to install since they do not need professional. One can easily install with the use of user manuals. However, one downside of this type of smoke detector is the fact that they need to be constantly checked for battery levels and replaced and tested to ensure they are still in operation.
The features found in a battery-powered smoke detector are similar to the mains powered detector. The main difference comes in the power supply where the battery-powered smoke alarm has a battery system. The voice communication in the alarm system helps in telling the occupants what to do after raising an alarm in the presence of fire in the house. They also have remote control panels as well as display panels for allowing easy checking by the personnel. Just like every other detector, battery smoke detectors have sensors fitted within to help detect the presence of smoke in the building. The sensors can detect smoke from the fire that can cause danger to the building. It avoids unnecessary alarms.
Brands of mains smoke alarms
TYPES OF ALARMS
There are mainly four types of smoke alarm currently on the market – ionisation, optical (also described as photo electronic), heat and combined.
IONIZATION
These are the cheapest and cost very little to purchase. They are very sensitive to small particles of smoke produced by fast flaming fires, such as paper and wood, and will detect this type of fire before the smoke gets too thick. They are marginally less sensitive to slow burning and smouldering fires which give off larger quantities of smoke before flaming occurs. They can also be too over-sensitive near kitchens.
OPTICAL
These are more expensive but more effective at detecting larger particles of smoke produced by slow-burning fires, such as smouldering foam-filled upholstery and overheated PVC wiring. They are marginally less sensitive to fast flaming fires. Optical alarms can be installed near (not in) kitchens, as they are less likely than ionisation alarms to go off when toast is burned.
COMBINED SMOKE & CARBON MONOXIDE ALARM
Alarms that combine both smoke detection and CO alarm protection in one ceiling-mounted unit. This reduces costs and takes up less of your living space.
COMBINED OPTICAL SMOKE & HEAT ALARMS
These are more expensive but more effective at detecting larger particles of smoke produced by slow-burning fires, such as smouldering foam-filled upholstery and overheated PVC wiring. They are marginally less sensitive to fast flaming fires. Optical alarms can be installed near (not in) kitchens, as they are less likely than ionisation alarms to go off when toast is burned.
HEAT ALARMS
They detect the increase in temperature from a fire and are insensitive to smoke. They can therefore be installed in kitchens. They only cover a relatively small area of a room, so potentially several heat alarms need to be installed in a large kitchen.
