What are the advantages and disadvantages of security alarms?

The advantages and disadvantages of security alarms are given below:

1.PHOTOELECTRIC SMOKE ALARMS:

Advantages:

Good for smoldering fire and dense smoke.
Not as prone to cooking nuisance alarms as ionization alarms.
Contain no radioactive material.
Suitable for general use.

Disadvantages:

Slightly more expensive than ionization alarms.
Nuisance alarms can occasionally occur from dust and insects.
They must be kept clean.

2. IONISATION SMOKE ALARMS:

Advantages:

Cheaper than other types of smoke alarms.
Very good with fast flaming fires with little visible smoke.
Less prone to false alarms caused by dust and steam.
Suitable for general use.

Disadvantages:

Susceptible to nuisance alarms if placed too close to cooking.
May be slow to respond slow smoldering fires.
Contain a very small amount of radioactive material.

3. CARBON MONOXIDE ALARMS:

Advantages:

Carbon monoxide alarms may be used in addition to smoke alarms for increased warning.
Carbon monoxide alarms are commonly used for the detection of fire in the home.

Disadvantages:

Carbon monoxide alarms are more expensive than photoelectric alarms.
Carbon monoxide alarms only have a lifespan of approximately 5 years.
Carbon monoxide alarms are in addition to a working ionization or photoelectric smoke alarms. They should not be used as the sole smoke alarm.

4. HEAT ALARMS:

Advantages:

Heat alarms are suitable for such places where smoke alarms are not be suitable e. g. kitchen.

Disadvantages:

Heat detectors are not considered as life saving devices because they are sensitive only to heat.

Smoke from a smoldering fire will not activate a heat detector.

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Which are various types of alarms used for the security of the house?

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