2 pcs pyroelectric infrared sensor LHI968 Compact motion detection elements Key benefits Detects motion by sensing changes in infrared radiation from moving heat sources, enabling reliable presence detection for electronic projects. Easy to integrate with common control circuits and microcontrollers for quick prototyping and product development. Compact, lowprofile design conserves space in enclosures and allows flexible placement in sensing assemblies. Why you need it Convert simple presence signals into automated responses for lighting, alarms, or energy management without complex optics. Improve device responsiveness to human movement and vehicle passage by using a dedicated pyroelectric sensing element. or upgrade existing motion detection elements in custom electronics with a standardized sensor model. Main features Function: Pyroelectric infrared motion detection element that responds to changes in incident infrared radiation. Compatibility: Suitable for integration with microcontrollers, alarm and security circuits, lighting controls, HVAC occupancy sensors, and robotics control boards. Physical attributes: Compact sensing element packaged for mounting or soldering into custom PCBs or sensor modules. Construction: Pyroelectric sensing element combined with a protective package and lead terminals for reliable electrical connection. Performance characteristics: Responsive to moving heat sources, provides a clear changeinsignal output suitable for interface with amplification or comparator stages. Practical applications Security motion detectors: Use as the sensing element in intruder alarm modules or perimeter detection units. Automated lighting: Trigger lighting circuits when people enter a room or corridor to improve convenience and reduce manual switching. Robotics and IoT projects: Implement presence detection for robots, smart devices, or occupancy sensing in building automation. What you get Two LHI968 pyroelectric infrared sensor elements suitable for experimental development, , or small production runs. Notes for integration Combine with appropriate signal conditioning, lens or Fresnel optics if a wider field of view or longer detection distance is required. Match output conditioning to the input logic levels of the target controller or interface circuit. Evaluate placement and mounting to avoid false triggers from direct heat sources or rapid ambient temperature changes. This 2 piece set of LHI968 sensors provides a compact, standard pyroelectric element for motion sensing projects and product designs where reliable detection of moving heat sources is required.