home security. Friday , July 20th , 2018 - 14:53:51 PM
Security systems that protect a home have surely come a long way from locks and barred windows. Modern technology has made these devices surprisingly sophisticated. Luckily, this sophistication is not reflected too much in their price: affordable prices, in the range of a couple hundred dollars, made these devices relatively common in modern homes.
DOOR AND WINDOW CONTACTS: These are a common part of most modern alarm systems. The purpose of it is to determine whether a door or window is currently left open unintentionally. The device will send a signal to the alarm system in such an event and it will set off making the house owner or the monitoring team aware of the situation.
Am I required to have a phone line or cellular phone for my security system?
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