The HLK-LD2412 Wide Angle Sensing mmWave Human Presence Sensing Module is a high-performance 24GHz radar sensor developed by HI-LINK Electronics for real-time human presence detection. Utilizing FMCW (Frequency Modulated Continuous Wave) radar technology, it detects both moving and stationary human targets with high precision and stability. With a detection range adjustable from 0.75m to 9m, a 0.75m resolution, and a ±75° sensing angle, the HLK-LD2412 offers excellent coverage for indoor environments. Its user-configurable parameters—including detection range, sensitivity, and delay time—allow developers to tailor performance to specific applications. Operating on either 3.3V or 5V power, this compact module provides reliable performance at only ~90mA current draw. Ideal for smart home systems, security automation, and occupancy-based lighting, it ensures accurate, contactless human presence detection in a cost-effective form factor. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
FMCW Radar Technology: Detects both motion and micro-motion with high accuracy.
Wide Detection Coverage: ±75° field of view enables large-area sensing.
Configurable Range and Sensitivity: Adjustable from 0.75m to 9m via configuration tools.
High Precision: 0.75m distance resolution for accurate detection results.
Dual Voltage Support: Operates on 3.3V or 5V with ~90mA typical current.
Multiple Output Interfaces: Serial UART communication for flexible integration.
Compact and Lightweight: 11×28mm module size, easy to install in embedded systems.
Compliant Design: Operates in 24GHz ISM band, compliant with FCC and CE standards.
Plug-and-Play Ready: Default pin header for quick prototyping.
Versatile Applications: Ideal for smart home, energy-saving lighting, and security systems.
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Applications:
Smart Home Automation: Detect human presence for lighting and HVAC control.
Security Monitoring: Enable motion detection and intrusion alerts.
Energy-Efficient Systems: Trigger power-saving modes in absence of users.
Smart Office and Retail: Manage occupancy-based control systems.
Public Facilities: Integrate into smart lighting and building automation systems.
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| General Specifications |
| Model | HLK-LD2412 |
| Manufacturer | HI-LINK Electronics |
| Frequency | 24GHz – 24.25GHz |
| Modulation Type | FMCW (Frequency Modulated Continuous Wave) |
| Detection Distance | 0.75m – 9m (Adjustable) |
| Distance Resolution | 0.75m |
| Detection Angle | ±75° |
| Power Supply | 3.3V or 5V (≥200mA) |
| Current Consumption | ~90mA (Typical) |
| Output Interface | UART (TX, RX), OUT Signal Pin |
| Output Logic | High = Presence, Low = No Presence (Configurable) |
| Frequency Bandwidth | 250MHz |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 11mm × 28mm |
| Compliance | CE, FCC (24GHz ISM Band) |
| Applications | Smart home, security, lighting automation |
| Shipment Weight | 0.0016 kg |
| Shipment Dimensions | 3 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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Package Includes:
1 x HLK-LD2412 Wide Angle Sensing mmWave Human Presence Sensing Module
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