







HLK-LD2450 is a high-precision 24GHz mmWave radar sensor for human presence detection and motion trajectory tracking with up to 8 meters sensing distance. Ideal for smart home, security, and automation applications.
The HLK-LD2450 is a compact and powerful 24GHz millimeter-wave radar sensor designed for real-time human motion tracking and presence detection. Utilizing mmWave technology, it can accurately detect and track up to 3 individuals simultaneously, delivering precise location coordinates and motion trajectories within an 8-meter range.
This module works reliably in various conditions, including complete darkness, behind obstacles (like curtains or glass), and in changing temperatures — offering a major advantage over infrared or camera-based systems. The LD2450 is ideal for smart home systems, occupancy detection, elderly care, automated lighting and HVAC, and security systems.
It communicates via a UART serial interface, making it easy to integrate with Arduino, ESP32, Raspberry Pi, and other microcontrollers for IoT applications.