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I’ve used this Camera for discreet monitoring - discover setup, audio quality, and remote viewing in my review.

Flexible strain sensors have attracted particular attention in monitoring the biological activity of organisms. This article presents a flexible piezoresistive strain sensor (FPSS) that uses nano- and ...

Miniaturized Doppler radar sensor (DRS) for noncontact motion detection is a hot topic in the microwave community. Previously, small-scale physiological signals such as human respiration and heartbeat ...