Pack of 12 AM312 Mini PIR Sensor Modules Product overview This pack contains 12 AM312 mini passive infrared human body sensor modules designed for automatic induction electrical equipment, human body sensor lighting, and industrial automation and control. Each module provides digital intelligent automatic control based on passive infrared technology, delivering compact and low power presence detection suitable for a wide range of projects. Key benefits Reliable motion detection: sensitivity and stable operation allow consistent detection of human movement for lighting control and automation tasks. Low power and compact: Small size and low power consumption make the modules easy to integrate into space constrained or battery powered systems. Clean digital output: Built in digital signal processing and direct and low level output simplify interfacing with microcontrollers and control circuits and improve state conversion reliability. Reduced false triggers: Anti interference design improves performance in environments with electrical noise. Core functions and behavior Detection type: Passive infrared human body sensing, producing a digital or low output corresponding to detected presence. Repeatable trigger mode: After the sensor output goes , if movement is detected within the sensor range during the configured delay interval the output remains . When movement stops, the output returns to low after the delay period following the person leaving. This behavior supports continuous occupancy detection without repeated false resets. Compatibility and integration Designed to interface directly with standard digital input circuits and microcontroller projects. Suitable for integration into automatic induction electrical equipment, sensoractivated lighting fixtures, industrial control panels, and other occupancy sensing applications. Small module form factor fits compact enclosures and retrofit installations. Typical use scenarios Corridor or stairway lighting: Automatically turn lights on when a person enters and keep them on while motion continues, then switch off after a delay once the area is vacated. Workspace occupancy control: Detect presence at desks or workstations to trigger ventilation, status indicators, or power saving modes. Simple industrial automation: Provide presence feedback to control logic for machinery interlocks, conveyor control, or process sequencing. What is included Twelve AM312 mini PIR sensor modules, ready for integration into projects and control systems. This product is intended for electronic and automation use and is supplied as a compact sensor module for developers, installers, and system integrators.