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Fire alarms are an integral part of every home. They silently protect the family and their possessions twenty-four hours a day. There are a great number of deaths each year that could have been prevented if there were functioning alarms placed in the building. Laws have even been passed that require homes to be constructed with fire alarms installed. However, even a pre-installed alarm requires monitoring to make sure that it continues to work.

There are two types of sensors that make up the bulk of all fire alarms. The first type is called an ionization sensor. This type of sensor does well at detecting fires which are burning very fast and moving though the structure. Those types of fires release ionized gas that can be tracked. The second type of sensor is called a photoelectric detector. This uses a small, light-sensitive device to try and spot pieces of particulate matter that is in the air. These particles are given off by fires that are burning more slowly, releasing more smoke that is heavier with debris.

Almost every governmental agency that deals with fire safety recommends using a fire alarm that contains both an ionization and photoelectric sensor. These types of units are known as dual sensor alarms. Dual sensor alarms are the most accurate way to detect a fire, no matter what the cause.

No matter what type it is, no fire alarm can be effective if it is not placed in the correct area. Heated gasses tend to rise, and since both types of sensors detect some particles floating in the air, it is important to mount the alarm high up in the room. The manufacturer’s instructions will have exact details, but expect the placement to be on the roof, or very near it.

There should be one fire alarm on each of the floors of the home, including the basement and garage. In addition, place alarms in each of the bedrooms where people may be sleeping. It is also recommended to place an alarm outside the door of each of the bedrooms for maximum safety.

In addition to installing fire alarms, it is vital that the family have a serious plan for what to do in the event of a fire. Once the alarm goes off, everyone should know exactly what to do. Most often this involves planning one or more escape routes to get out of the house. It should take into account any extra safety devices installed, such as ladders or ropes at certain windows. The plan should also include a meeting place where everyone will reunite after escaping. The whole family should not only have the plan memorized, but should practice it together from time to time.

Simply installing a fire alarm and having an emergency plan is not enough. Fire alarms require regular maintenance. For battery operated units, this means replacing the batteries every six months. Whether they work or not, they need to be replaced. It also means keeping the unit very clean so that the sensors inside can function properly. A working fire alarm and a prepared family can dramatically increase the chances of escaping a fire unharmed.

Matthew Kerridge is an expert in home safety. If you would like further information about types of fire alarms or are searching for a reputable fire alarm company please visit http://www.adt.co.uk