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
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