1. Plug and play, easy assembly 2. The sensing distance can reach 9 meters, and the closest and farthest detection distances can be configured. 3. Large detection angle, coverage range can reach 75 degrees. 4. Multi-level intelligent parameterization to meet the needs of scene changes. 5. Visual debugging and configuration tools LD2412 is a high-sensitivity 24GHz human presence sensing module. Its working principle is to use FMCW frequency modulation continuous wave to detect human targets in a set space, combined with radar signal processing and precise human body sensing algorithm to achieve high-sensitivity human presence state sensing, which can identify moving and stationary human bodies, and can calculate auxiliary information such as target distance. This product is mainly used in indoor scenes to sense whether there are moving or slightly moving human bodies in the sensing area, and output the detection results in real time. The maximum sensing distance can reach 9 meters, and the distance resolution is 0.75 meters. Provide a visual configuration tool to easily configure the sensing distance range, sensing sensitivity in different areas, unattended delay time, etc., to meet the needs of different specific applications. Support GPIO and UART output, plug and play, and can be flexibly applied to different smart scenes and terminal products. Compact and simplified, supports ceiling and wall installation. 24GHz ISM band Colour: Photo Color Material: ABS Package Contents: 1 x Radar Sensor 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.