Features: 1. AM312 Human Sensing Module: It Is A Digital Intelligent Automatic Control Product Based On Passive Human Infrared Technology, With High Sensitivity And Strong Reliability, Widely Used In Various Automatic Sensing Electrical Equipment 2. Immunity Enhancement, Internal Use Of Digital Signal Processing, Direct High-Low Output. 3. Repeatable Trigger: The Sensor Output High After, The Delay Periodif There Is Human Activity In Its Sensing Range, The Output Will Remain High Until The People Left After The Delay, It Becomes Low (Ie: Sensor Module Detects The Human Body Every Activity Will Be Automatically Extended A Period Of Time Delay, And To The Last Activity Time As The Starting Point Of The Delay Time).  Specifications: Working Voltage: DC2.7V-12V. Static Power Consumption: