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A 24 GHz FMCW radar module that senses human presence and motion, not just movement, so it can keep a room flagged as occupied while someone sits still. It is a bare board meant to wire into a microcontroller or alarm panel, not a finished consumer sensor with an app. That puts it ahead of passive infrared sensors on still-body detection and behind complete mmWave products that ship with a case, power supply and setup software. It suits makers and installers building occupancy automation, lighting control or intrusion alerts.
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Lowest price we've seen: $9.88 on Nov 14 at Arrow.com; highest $49.99 on Oct 31. Tracked across 5 stores since Oct 31.
This is a 24 GHz millimeter wave sensor module that uses FMCW sensing to detect human presence and motion. It is made for smart security systems, home automation and access control.
The module can trigger alerts and automate responses based on occupancy. It is built for plug-and-play integration with standard electronics and common microcontrollers. Its high sensitivity supports occupancy monitoring and motion sensing for alarms and indoor security.
