The sensing module adopts dual probe, the window of the probe is rectangular, and the dual element (a-element b-element) is located in two long directions<br>When the human body passes from left to right or from right to left, there is a difference in the time and distance from the infrared spectrum to the binary, the more the difference<br>When the human body moves from the front to the probe or from top to bottom or from bottom to top, the binary detection will not<br>There is no difference in the distance from the infrared spectrum, so the sensor is not sensitive or does not work; therefore, when installing the sensor, make the probe<br>The direction of the dual element and the direction of the most human activities shall be parallel as far as possible, so as to ensure that the human body is successively sensed by the probe dual element when passing by.<br>In order to increase the sensing angle range, the module uses a circular lens, which makes the probe sense on all four sides, but the left and right sides are still<br>Compared with the upper and lower two directions, the sensing range is large and the sensitivity is strong. The above requirements shall be followed as much as possible during installation.<br>
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