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5. Installation and detection range
The HLK-LD2420 supports both ceiling and wall mounting, and the recommended method is
ceiling mounting.
The orientation of the radar is shown in Figure 5-1. The Y-axis is 0°, the X-axis is 90°, and the
Z-axis is perpendicular to the X-Y plane (also called the normal direction).
5.1. Ceiling Mount
The recommended ceiling mounting height is 2.7~3 m. The maximum motion sensing range of
the HLK-LD2420 radar module in the default configuration is a conical three-dimensional space with
a bottom radius of 5 m, as shown in Figure 5-2.
Figure 5-2 HLK-LD2420 radar module detection range diagram (hanging top) Hanging top installation height
The motion and micro-motion detection range of this reference scheme at 2.7m is shown in Figure 5-3.
HLK-LD2420
Figure 5-1 Radar module orientation diagram
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