Home security companies often rely on cameras and motion sensors to catch trespassers, but as VOA’s Tina Trinh discovers, Wi-Fi signals can be a less intrusive way to monitor activity.
Produced by: Tina Trinh
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Home security companies often rely on cameras and motion sensors to catch trespassers, but as VOA’s Tina Trinh discovers, Wi-Fi signals can be a less intrusive way to monitor activity.
Produced by: Tina Trinh
…