AM312 PIR Sensor Module Repeat trigger and delay behavior After a detection event, the output remains active during the preset delay as long as the person is within the detection range. When the person leaves and the delay timer expires, the output returns to low. Function and performance Compact size and low power consumption plus antiinterference capability. Internal digital signal processing provides stable operation with direct, lowlevel output. Sensitivity and technology The AM312 digital intelligent automaticcontrol PIR module uses passive infrared technology for sensitive and reliable motion detection. Quality and versatility , quality mini pyroelectric PIR sensor module suitable for a wide range of automatic induction electrical equipment and smart applications. Key attributes Compact form factor, low power draw, digital signal processing, antiinterference, direct lowlevel output, and reliable PIRbased occupancy sensing. Typical applications 1) Auto lighting control: turns lights on when motion is detected and turns them off after the delay once space is unoccupied. 2) Security and surveillance: activates cameras, alarms, or recording systems when motion is detected. 3) Smart home and automation: controls fans, vents, or other devices based on occupancy to improve comfort and energy efficiency.