Q: I wanted to add window sensors to my home for extra peace of mind, and I thought it would be a simple task of searching for “window sensors for security” or “alarms for windows in house.” But it ...

Boost home security with these five DIY upgrades — some may even qualify for a home insurance discount.

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Door sensors detect door position (i.e., open or closed) based on the precise gap between the magnet and the reed switch.