DC 12V PIR Motion Sensor Module with Adjustable Relay Output for Smart Human Body Detection

DC 12V PIR Pyroelectric Infrared Human Body Sensor Module with Adjustable Relay Output 1 piece Key benefits Detects human presence using a pyroelectric infrared sensor for reliable motiontriggered control. Works with DC 12V systems and provides an isolated relay output for direct control of lights, alarms, or control relays. Adjustable relay output settings let you trigger behavior and hold time to match the application. Compact module design simplifies integration into existing systems and enclosures. Reduces manual switching and supports more efficient, automated control without complex wiring or programming. What it does and how it helps Function: Senses infrared radiation from a human body and activates a relay output when motion is detected. Problem solved: Replaces manual on/off control and unreliable passive motion solutions by providing a dedicated sensor module that switches devices automatically. Practical advantage: Relay output provides a clean switching interface for mains or lowvoltage loads through a suitable external relay or driver. Important attributes Power: DC 12V operation for compatibility with common lowvoltage control supplies. Sensor type: PIR pyroelectric infrared element optimized for human body detection. Output: Adjustable relay output for flexible trigger duration and behavior. Quantity: 1 piece included. Construction: Electronic PCB module with integrated PIR sensor and relay interface for easy mounting and wiring. Performance: Designed for stable motion detection and repeatable relay switching in typical indoor environments. Installation and compatibility notes Designed to integrate with lighting circuits, alarm and security systems, automation controllers, and timer or relay inputs that accept a relay contact. Requires a DC 12V supply and appropriate wiring to the relay contacts; use appropriate external components when switching mains voltages. Mount with a clear line of sight to the monitored area and avoid pointing directly at heating sources or reflective glass. Typical use scenarios Automatic corridor and stairwell lighting: Trigger lights only when people are present to improve convenience and reduce manual switching. Security and alarm activation: Use the relay output to trigger sirens, cameras, or notification circuits when motion is detected. Office or workshop automation: Integrate into control panels to activate ventilation, task lighting, or equipment only during occupancy. Contents One DC 12V PIR pyroelectric infrared human body sensor module with adjustable relay output.