 Articles tagged: master control panel.
<< previous page 1 next page>> written by Rick Martin
In 1858, a man named Edwin Holmes, invented the first burglar alarm system. It was a simple device consisting of a spring that was released upon the opening of a window or door, which would then close an electrical circuit. Many more years later, alarm systems have taken a new face and have incredibly features in order to permit a complete protection of one’s home. << previous page 1 next page>> |
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