LD116S 24GHz Millimeter Wave Radar Motion and Range Sensor Module Key benefits Reliable motion detection using 24GHz millimeter wave radar for precise monitoring of movement and distance. Works independently of ambient light and can detect small motions that optical sensors may miss. Relaycompatible output for direct control of external relays or interfacing with control circuits, simplifying integration with lighting, alarms, or automation systems. Compact PCB form factor that fits into constrained spaces and can be mounted in enclosures or equipment racks. Designed for easy integration with microcontrollers and automation controllers for diverse applications. Core functions and attributes Function: Continuous motion monitoring and distance detection using millimeter wave radar technology at 24GHz frequency. Compatibility: Interfaces with common control systems, microcontrollers, relay modules, and building automation equipment. Suitable for retrofit and installations. Size and material: Compact electronic module on a printed circuit board for insystem mounting. Standard mounting holes and connector pads allow straightforward mechanical and electrical connections. Performance: sensitivity to motion and small gestures, stable operation across a range of lighting conditions, and reliable triggering for control outputs. Practical features Relay output compatibility to drive or trigger external switching devices without complex converters. Low maintenance operation with no moving parts and resistance to false triggers caused by light changes. Suitable for indoor installation and placement behind nonmetallic panels where radar signals can pass. Typical applications Lighting automation: Automatically switch corridor, stairwell, or closet lighting when presence is detected, improving convenience and energy efficiency. Security and occupancy sensing: Integrate with access control or alarm systems to detect unauthorized movement or to confirm room occupancy. Industrial automation and equipment control: Detect personnel presence near machinery to enable safety interlocks or to trigger machine start and stop sequences. Integration notes Use standard control wiring to connect the module output to relay coils or controller inputs. Test placement and orientation during commissioning to achieve the desired detection coverage and minimize unwanted triggers. Pair with appropriate power supply and protection circuitry per system requirements. The LD116S 24GHz radar sensor module delivers practical, lightindependent motion and range detection in a compact form, making it a versatile option for lighting control, security, and industrial automation projects.