What is the difference between HLK-LD2420 and LD2410B
29 Jan 2025
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In the world of human motion detection, two advanced modules that stand out are the HLK-LD2420 and the HLK-LD2410B. Both modules are designed to detect human presence and motion, but they employ different technologies and have different features and capabilities. In this article, we will compare these two sensors to help you understand their strengths and differences, making it easier for you to choose the right one for your application.
Key Technology and Detection Method
| Feature | HLK-LD2420 | HLK-LD2410B |
| Technology | 24 GHz FMCW radar technology | |
| Detection Type | Detects moving and stationary bodies, micro-movements |
|
| Key Strength |
Broad detection range with micro-movement detection |
Micro-movement detection for detailed precision |
Detection Range and Angle
| Feature | HLK-LD2420 | HLK-LD2410B |
| Maximum Detection Range | 8 meters | 5 meters |
| Resolution | N/A | 0.75 meters |
| Detection Angle | ±60° | |
Communication and Configuration
| Feature | HLK-LD2420 | HLK-LD2410B |
| Interfaces | UART, SWD | Bluetooth, UART |
| Bluetooth Support | No | Yes |
|
Configuration
|
SWD for debugging, UART for configuration |
Bluetooth for mobile app configuration,
UART for PC configuration
|
Sensitivity and Motion Detection
| Feature | HLK-LD2420 | HLK-LD2410B |
| Micro-Motion Detection | Yes (sitting, lying down) | |
| Adjustable Sensitivity | Yes | |
| Detection of Stationary Bodies | Yes | |
Size and Integration
| Feature | HLK-LD2420 | HLK-LD2410B |
| Dimensions | 20mm x 20mm | 7mm x 35mm |
| Integration | Suitable for larger devices or areas |
Extremely compact for
integration into small spaces
|
Environmental Adaptability
| Feature | HLK-LD2420 | HLK-LD2410B |
| Environmental Tolerance | Temperature, humidity, light-independent | |
| Interference Resistance | Low interference from external conditions |
Resistant to light, humidity, and temperature fluctuations |
Applications
| Feature | HLK-LD2420 | HLK-LD2410B |
| Smart Homes | Lighting, security, HVAC automation | |
| Security Systems | Human intrusion detection | |
| Industrial Automation | Worker monitoring and safety | |
| Healthcare | Fall detection, motion monitoring | |
Installation and Mounting
| Feature | HLK-LD2420 | HLK-LD2410B |
| Mounting Options | Ceiling or wall mount | |
| Installation Height | 2.7m – 3m (ceiling), 1.5m – 2m (wall) |
1.5m – 2m (wall),
ceiling optional
|
Conclusion: Which One Should You Choose?
| Feature | HLK-LD2420 | HLK-LD2410B |
| Best For |
Longer detection range (up to 8
meters) and flexible configuration
|
Precision micro-motion detection
and Bluetooth configuration
|
| Compactness | Larger size for broader applications | Ultra-compact design for small integrations |
| Technology |
Excellent for smart home, industrial,
and healthcare applications
|
Ideal for compact smart appliances
and sensitive motion detection
|
Summary
-
HLK-LD2420 is better suited for longer detection ranges and flexible configuration options for a variety of applications. It is perfect for environments that need wide area coverage and precise detection of human presence and motion.
-
HLK-LD2410B is ideal for micro-motion detection and applications where space is tight. Its Bluetooth functionality also makes it easier to configure and manage, especially for users looking for convenience in smart home or IoT projects.
Both sensors offer powerful motion detection capabilities, but the choice between them depends on the specific needs of your project, whether it’s for extended range, flexibility, or a compact, micro-motion-focused solution.
