Advanced Radar Presence Detection Powered by the HLK-LD2410B millimeter-wave radar module, the system accurately detects both moving and stationary human presence up to 6 meters indoors. Compared to traditional PIR sensors, it delivers higher precision, greater automation flexibility, and more reliable occupancy detection in challenging environments. Enhanced Wi-Fi Performance with External Antenna Built on the Seeed C3 MCU and equipped with an external antenna, it provides stronger Wi-Fi coverage and improved signal stability. Modular Dual-Sensor Architecture The device consists of two physically separated modules connected by a flexible cable. By isolating the climate sensor from the main controller, heat interference is minimized, resulting in significantly more accurate and realistic temperature and humidity readings. Main Module: Multi-sensor controller with the LD2410B radar for presence detection Secondary Module: Dedicated temperature and humidity sensor based on the AHT20 Seamless Home Assistant Integration — No Manual ESPHome Setup Required Each device comes pre-flashed with ready-to-use ESPHome firmware, so no manual configuration is needed. Simply connect to the device hotspot, enter your Wi-Fi credentials, and it will automatically appear in Home Assistant — no YAML editing or ESPHome installation required.