The sensor functions by detecting presence and motion, allowing users to automate lights, climate control, or entertainment systems based on occupancy. By utilizing 140-degree horizontal coverage, the unit can be placed on a shelf or wall-mounted to survey larger rooms. Its core utility lies in ten customizable detection zones, enabling granular control—such as activating a desk lamp only when a user is seated or powering home theater equipment exclusively when someone occupies the sofa.
Shelly Launches mmWave Presence Sensor for Privacy-Focused Automation
Moving away from traditional optics, Shelly’s new Presence Gen4 sensor tracks up to ten people simultaneously using mmWave radar rather than cameras. Priced at $84.99, the device monitors movement and activity across 650 square feet, offering a way to trigger home automations without the privacy concerns of visual surveillance.
Integration remains a priority, as the device supports Wi-Fi, Bluetooth, Zigbee, and Matter, ensuring compatibility with platforms like Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and Home Assistant. While the unit requires a constant USB-C power connection, its ability to distinguish between pets and people while maintaining data privacy differentiates it from camera-based security alternatives. The sensor is available immediately through Shelly’s official store, with wider retail availability at Amazon and Best Buy expected in the coming weeks.
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