XIITIA 4pcs LD2410D Human Presence Radar Sensor Module HLK-LD2410 LD2410 Millimeter Wave Non-Contact 24GHz ISM Band Serial Port IO Level Output

["★The LD2410D is a stationary human presence sensor that incorporates streamlined 24GHz sensor hardware and firmware featuring intelligent algorithms for detecting subtle human movements.","★The hardware is equipped with an AIoT millimeter-wave sensor, a high-performance 24GHz transmitter-receiver antenna, and peripheral circuitry; it utilizes millimeter-wave radar distance measurement technology and advanced proprietary radar signal processing technology in the radar chip to achieve precise detection of motion, subtle movements, and human presence.","★The human presence detection intelligent algorithm firmware is primarily designed for indoor environments to detect motion, subtle movement, or human presence within a designated area, and refresh detection results in real time.","★Ceiling-mounted Installation: The X-axis is 0°, the Z-axis is 90°, and the Y-axis is perpendicular to the X-Z plane (also known as the normal direction). For products installed on the ceiling at a height of 3 meters, the maximum motion detection range is a conical space with a base radius of 4 meters.","★Wall-Mounted Installation: The recommended installation height for wall-mounted units is 1.5 to 2 meters. When wall-mounted, the millimeter-wave sensor’s X-axis (reference) should point horizontally, the Z-axis upward, and the Y-axis toward the detection area. By default, wall-mounted units have a maximum motion detection range of 6 meters in the normal direction of the sensor, within a conical space with an angle of ±60° in the horizontal and vertical directions."]