HLK-LD2401 24GHz Radar Motion Detection Sensor Module
The HLK-LD2401 24GHz Radar Motion Detection Sensor Module is designed to accurately detect human presence, movement, and stationary targets using advanced microwave radar technology. It supports contactless detection with ultra-high sensitivity, low power consumption, and reliable performance even through non-metallic materials such as glass, wood, and plastic. This module is extremely stable, maintenance-free, and ideal for intelligent automation and energy-saving applications.
It can be used with the HLKRadarTool application.
Google Play AppStore
User Manual
Features
- Operating Frequency: 24GHz ISM band
- Detection Range: Up to 6 meters (adjustable)
- Detection Angle: 100° horizontal / 60° vertical
- Detection Capability: Micro-motion, breathing, and presence detection
- Operating Voltage: DC 5V
- Interface: UART / GPIO output
- Power Consumption: <0.2W (typical)
- Output Type: Presence detection signal (high/low level output)
- Antenna Type: Internal antenna
- Operating Temperature: -20°C to +85°C
- Dimensions: Compact module for easy integration
- HF System: 24GHz CW Radar ISM Band
- Transmission Power: < 10 mW
- Power Supply: 3-5 V DC
- Ambient Light: <3-3000 LUX
- Nominal Load: 1200 W
- Motion Detection Speed: 0.6 - 1.5 m/s
- Dimensions: 18x22mm
Pin Diagram

Usage
