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Millimeter Wave Human Body Sensor

Millimeter Wave Human Body Sensor Category Overview and Selection Guide


XKC designs sensing solutions for accurate, privacy‑safe occupancy detection in modern spaces. Based on 60 GHz static‑presence radar (e.g., LD002), these sensors capture micro‑motion such as breathing and subtle posture changes, so occupancy remains active even when a person is still. XKC combines in‑house R&D, over a decade of manufacturing, and dozens of patent technologies to deliver consistent performance, reliable quality, and flexible customization for homes, offices, industrial systems, medical equipment, and smart city devices.


How It Works and Why It Matters


The device emits and receives high‑frequency radar waves to sense small range changes caused by the human body. Unlike PIR, it maintains presence without large motion and can operate through thin non‑metallic covers such as plastic or glass. It is also resilient to ambient light, temperature shifts, and sunlight. The outcome is fewer false triggers, smoother automation, and improved comfort.


Key Features



  • Static presence with micro‑motion detection for stable occupancy output


  • Adjustable detection zone: configurable range, sensitivity, and hold time


  • Anti‑interference design for varying light, temperature, and airflow


  • Privacy‑friendly operation: no images or audio


  • Flexible mounting: wall, ceiling, or embedded module formats


  • Low power and fast response for always‑on scenarios



Core Applications and Use Cases



  • Smart homes/buildings: lighting, HVAC, scenes; bedroom and bathroom presence


  • Offices/meeting rooms: desk or room occupancy and energy savings; presence analytics


  • Appliances/electronics: smart switches, air purifiers, range hoods, screens that wake on approach


  • Medical/wellness: non‑contact presence and rest monitoring


  • Industrial/logistics: bay or aisle presence, equipment wake‑up, safety interlocks


  • Smart city/charging: booth or pod occupancy, EV charging pile awareness



Product Variants and Parameters


60 GHz Static Presence Series (e.g., XKC LD002)


Optimized for fine micro‑motion and precise hold logic, the 60 GHz series suits rooms where occupants may remain still for long periods. Options include tunable detection distance, field of view, and firmware thresholds. Compact modules are ready for OEM integration.


Frequency and Hardware Options (on request)


For specific propagation needs, additional frequency variants (e.g., 24 GHz presence sensing) can be evaluated. Antenna design, FOV shaping, and shielding are customizable to balance range, coverage, and installation constraints.


Interfaces and Outputs


Choose from GPIO presence output, UART for raw or processed data, and RS485/TTL for longer runs or networked devices. XKC Wi‑Fi controllers are available for wireless linkage.


Mechanical and Installation Formats


Available as ceiling‑mounted sensors, wall‑mounted radar units, and embedded modules. Faceplates and radomes in plastic or glass preserve transmission while meeting appearance and IP needs.


Installation and Integration Best Practices



  • Keep metal away from the antenna and maintain clear coverage of the monitored area


  • Use thin, non‑metallic covers if a faceplate is required


  • Calibrate sensitivity and distance to avoid HVAC airflow or moving curtains


  • For partitioned or complex spaces, deploy multiple units with slight overlap to remove dead zones



Millimeter Wave vs Microwave vs PIR: Choosing the Right Presence Technology



  • Millimeter wave (60 GHz): well suited for static presence and micro‑motion; privacy‑friendly; resilient to environmental noise; supports premium comfort and energy savings


  • Microwave (5.8 GHz, e.g., LD500B): good for motion initiation and wider coverage; cost‑efficient for corridors and public zones


  • PIR (e.g., XKC‑003K4): simple, low power motion detection for basic on/off triggers



Many projects combine a 60 GHz presence sensor for stay detection with microwave or PIR for approach triggers and extended coverage.


Customization and Engineering Support


XKC offers firmware tuning (micro‑motion thresholds, hold‑time logic, filtering), FOV customization, interface adaptation, and enclosure co‑design. Our team supports rapid prototyping to align with target environments and compliance needs. Contact us to discuss your project and request a quote.


Reliability, Compliance, and Quality


We emphasize validation across temperature, humidity, and electromagnetic conditions typical of homes, offices, and industrial sites. With independent design and manufacturing plus traceable production, we aim for durable operation over the product lifecycle.


Category‑Specific Notes and Cross‑Portfolio Fit


This category focuses on 60 GHz static presence detection for fine micro‑motion sensing. To meet broader motion initiation and cost targets, XKC also offers 5.8 GHz microwave sensors (LD500B) and PIR motion sensors (XKC‑003K4). For multi‑room or mixed‑use projects, place mmWave units in occupied zones, and use microwave or PIR at perimeters and entrances. Integrate with XKC controllers and other sensor types to build unified automation across homes, offices, industrial equipment, medical devices, and charging infrastructure. Contact us to evaluate your scenario and select the right combination.

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