Answers from Experts:
There are four types of alarms used for the security of the house:
1.Burglar alarms
2.Smoke alarms
3.Heat alarms
4.Carbon monoxide alarms
1.BURGLAR ALARMS:
Burglar Alarms can be broadly categorized into 2 main groups:
Know more about different alarm systems at link:
http://www.gharexpert.com/articles/Security-Alarms-763/Which-various-types-alarms-used-se_0.aspx
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