how do burglar alarms work

Burglar alarms are designed to alert homeowners and deter thieves. Depending on the type of burglar alarm you install, the way they work will differ slightly. Ultimately, though, burglar alarms work by detecting movement, often at entry/exit points within the home. Once a motion sensor has been triggered, a loud alarm/siren will sound in order to draw attention to the potential intruders.


School fire alarm system

Schools and colleges must do what they can protect students and staff members from fire. A well-maintained fire alarm system is one of the most crucial components of that effort.


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