Technology: Protecting the Home Front

Home security begins, well, at home. Fortunately, the "newer, better, cheaper" imperative of tech innovation is on the march here as much as in home entertainment. For protection against intruders, you can get a phone that meshes with your home-security system and doubles as a panic button. From fire-fighter-grade smoke masks to next-generation smoke detectors to a GPS collar that makes it easy to keep track of Rover no matter where he roams, here are gadgets to take care of everyone in the family.

SUPERSMART SMOKE DETECTORS Smoke detectors have made a big leap forward thanks to some simple wireless...

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