1.LD020 is a radar module operating at 5.8GHz. It adopts fixed frequency, directional transmitting and receiving antennas (1TIR), integrates intermediate frequency demodulation, signal amplification and digital processing, and has the capabilities of delay setting, adjustable sensing range and light intensity detection. 2.The module has the characteristics of no wall penetration, anti-interference, small size, no wall penetration, high stability, good consistency, good noise and high-order harmonic suppression effect. The initialization time is short and it also has a quick inspection mode. It is suitable for embedded concealed installation, is not affected by temperature/humidity, oil smoke, water mist, etc., and can be widely used in various mobile sensing scenarios. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:blue Material:PCB Package Contents: 1 x Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.