1. LD020 is a radar module operating at 5.8GHz. It adopts fixed frequency, directional transmitting and receiving antennas (1T1R), integrates intermediate frequency demodulation, signal amplification, and digital processing, and features delay setting, adjustable sensing range, and light intensity detection. 2. The module offers no wall penetration, anti-interference capability, compact size, high stability, good consistency, effective noise suppression, and high-order harmonic suppression. It has a short initialization time and includes a quick inspection mode. Suitable for embedded concealed installation, it is not affected by temperature, humidity, oil smoke, or water mist, making it ideal for various motion sensing applications. Due to different production batches, there may be variations in product appearance, color, and printed text, which do not affect functionality. Color: Blue Material: PCB Package Contents: 1 x Module Note: The package includes only the items listed above. Other products are not included. Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.