A perimeter alarm system is one that will go into alarm before an intruder enters your home, not after. Many alarm companies (the majority being the "free" alarm companies) will recommend a system that focuses on protecting the main entry doors, and placing motion sensors in "strategic" areas around your home. The thinking is that should an intruder enter through any of the windows, they will eventually walk in front of a motion sensor and the alarm will sound. The problem with this setup is that the intruder is already inside your house! Now they have nothing to lose and grab whatever they can. This is especially a problem if you like to arm your system while you're at home. Most likely you will have to "bypass" some of the motion sensors to do this, so you can walk about the house without setting off your alarm. Now, you have a serious drop in your level of protection, and a false sense of security.

A perimeter alarm concentrates on all of the accessible entry points of your home, so that the alarm will sound BEFORE the intruder enters the home. Chances are, the intruder will cut his or her losses and flee the situation, leaving your house and all its contents (including your family!) undisturbed.

Vstar Security is professional manufacturer and supplier for gsm cellular perimeter security alarm systems, The GSM periemter security adopts invisible Active Infrared Beam Motion Detection Technology which effectively reduce the false alarm by the weather, rain, pets, animal..etc.

With the weatherproof design, IR Beams can install both inside and outside.

Double connection (wireless and wired) between IR Beams and alarm panel, alarm panel built-in telephone auto dialer (PSTN Module), as well as GSM Cellular Dialer (GSM Module), users can obtain alarm information in real-time by telephone and mobilephone (SMS).

It's a professional solution for protection of exterior (perimeter) and interior intrusion and safety of house,warehouse, shop, store, school, commercial building.

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