HI-LINK HLK-LD020

The HLK-LD020 is a motion sensing module based on an X-band chip design, operating at a center frequency of 5.8GHz. The module employs fixed-frequency, directional transmit and receive antennas (1T1R), integrating IF demodulation, signal amplification, and digital processing functions, with capabilities for delay setting, sensing range adjustment, and light intensity detection. This product features non-wall-penetrating operation, strong anti-interference capability, compact form factor, effective clutter and harmonic suppression, as well as high stability and consistency. The module offers a short initialization time and a quick-detection mode, making in-fixture testing straightforward and effectively accelerating production testing. Targeting low-cost applications, the module is suitable for embedded concealed installation and is unaffected by temperature, humidity, cooking fumes, water mist, and other environmental factors, making it widely applicable to various luminaires such as fluorescent lamps, bulbs, downlights, and ceiling lights.

• Based on Doppler principle.
• Ceiling-mount installation, 3dB beam width 110°±10°.
• Designed for motion sensing applications.
• Fast detection mode supported.
• Sensing range: ceiling height 4~5 m (sensing radius), wall-mount 10~12 m (radial).
• Ambient light detection capability (disabled by default).

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