Weighing the Value of a Home Security System

(By PAUL SULLIVAN)

PEOPLE may be surprised to learn that when they most need their security system to protect their house, they oftentimes cannot rely on it. Jackie Ostrander discovered that when a storm knocked out power to her home in Greenwich, Conn., for a week in March — too long for her backup battery to keep going. And it took her security company three weeks to restart her system.

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