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Weewooday 10 Pieces Am312 Pir Sensor Mini Pir Motion Sensor Infrared Human Body Pyroelectric Infrared Motion Module 2.7v to 12v sold2024 such as karaoke speakersWeewooday 10 Pieces Am312 Pir Sensor Mini Pir Motion Sensor Infrared Human Body Pyroelectric Infrared Motion Module 2. 7v to 12v Features: The trigger mode of these mini human sensor modules: After high sensing output, during the delay time, if a human body is active within its sensing range, its output will keep high until the delay after the people leaves, then it will become low. The human sensor module will prolong a delay time cycle automatically