Good locks on all outside doors and first floor windows are essential to a home’s security and will go a long way towards discouraging burglars. (1)_________________________. Although this will not always prevent entry by a professional burglar, it is often enough to scare off thieves who account for a high percentage of residential break-ins。
Security alarm systems have all been available for many years and have long been common in commercial and industrial establishments and in large homes. But until the last few years, these system were almost always professionally installed because they required complicated wiring techniques, individualized design and sometimes lots of carpentry---all of which made them expensive。
(2)_________________________. These systems come with detailed installation instructions and usually do not require inside-the-wall-wiring。
