Hi-Link HLK-LD2420 24GHz Human Presence & Micro-Motion Detection Radar Module
The Hi-Link HLK-LD2420 Radar Sensor is a compact, high-performance 24GHz radar module designed for accurate human body presence detection – including both movement and micro-movements. It’s powered by advanced mmWave radar technology and Hi-Link’s proprietary signal processing, making it ideal for smart home, IoT, and automation projects.
Compared to traditional PIR sensors, the HLK-LD2420 is far more sensitive and reliable, especially in detecting subtle motions like breathing or standing still. With a detection range of up to 8 meters, it’s perfect for applications like smart lighting, occupancy sensing, energy-saving systems, and touchless interaction setups.
Key Features:
- Compact Size: Only 20mm × 20mm – fits anywhere!
- 24GHz ISM Band: License-free, with FCC & CE certifications
- Accurate Human Detection: Detects movement, micro-movement, and standing persons
- Plug and Play: Comes preloaded with body sensor configuration
- Wide Input Range: 3.0V to 3.6V power input
- Multiple Interfaces: Supports GPIO and UART for easy integration
Specifications:
| Parameter | Details |
|---|---|
| Power Supply | 3.3V (supports 3.0V to 3.6V) |
| Operating Current | 50 mA (average) |
| Operating Frequency | 24 GHz |
| Detection Range | Up to 8 meters |
| Interfaces | GPIO, UART |
| Module Size | 20mm × 20mm |
Applications:
- Smart lighting systems
- Human presence and occupancy detection
- Energy-saving automation
- Home security systems
- Touchless interaction interfaces
Whether you’re building a smart home or an energy-efficient automation system, the HLK-LD2420 Radar Sensor is a compact, reliable, and plug-and-play solution that gives your project next-level intelligence.
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