Shelly’s new presence sensor simultaneously detects up to 10 people without a camera

Shelly has introduced the Presence Gen4 sensor, a new smart home device designed to track human movement without the privacy concerns associated with traditional cameras. Utilizing mmWave radar technology, the sensor can detect and monitor the presence of up to ten individuals simultaneously within a room or large space. This launch follows the company's recent release of a subscription-free security camera, further expanding its portfolio of automation hardware. By relying on radar rather than optical imaging, the device offers a privacy-focused solution for occupancy sensing, which is ideal for automated lighting, climate control, and security applications. The sensor is intended to integrate seamlessly into existing smart home ecosystems, providing granular data on room occupancy without the need for visual recording. This move highlights a growing trend in the smart home market toward non-optical sensing technologies that prioritize user privacy while maintaining high levels of functional accuracy.