The HLK-LD2420 is a high-performance 24 GHz radar module featuring one transmitter and one receiver antenna. It leverages millimeter-wave radar distance measurement technology alongside advanced proprietary signal processing of the S3 series chips. This enables precise detection of motion, micro-movements, and stationary human bodies.

Designed primarily for indoor use, the HLK-LD2420 can detect moving or slightly moving humans within its coverage area and provides real-time detection updates. The module supports flexible configuration for sensing distance, sensitivity, and refresh intervals across different zones. With a maximum detection range of 8 meters, it is an ideal solution for a variety of smart applications.




Specification:

• Module Name: HLK-LD2420


• Frequency Band: 24 GHz ISM (FCC and CE approved)


• Supply Voltage: 3.0 V - 3.6 V (Typical: 3.3 V)


• Operating Current: Average 50 mA


• Detection Range: Up to 8 meters


• Detection Angle: ±60°


• Minimum Sensing Distance: 0.2 m (No blind zone)


• Module Size: 20 mm × 20 mm


• Interfaces: GPIO, UART


• Application: Indoor human body sensing

Features:

• Single-chip millimeter-wave sensor with integrated smart algorithm firmware


• Plug-and-play functionality with preloaded body sensing configurations


• Supports real-time reporting of detection results


• Customizable sensing range, sensitivity, and refresh intervals


• Capable of range segmentation to isolate zones and prevent interference


• Multiple installation options, including wall and ceiling mounting


• Strong anti-interference capability in diverse environments


• Visualization tools for configuration and analysis

Package Included:

• 1 × HLK-LD2420 Radar Module


• User Manual