Difference between revisions of "Door Sensors"
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=== Overview === | === Overview === | ||
Sometimes it's useful to know whether doors or windows have been opened or not. When a door opens unexpectedly in your loved one's home. They can tell you when someone has arrived, or if someone is leaving at an unexpected time. | <!-- Sometimes it's useful to know whether doors or windows have been opened or not. When a door opens unexpectedly in your loved one's home. They can tell you when someone has arrived, or if someone is leaving at an unexpected time. --> | ||
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