PIR Motion Sensor
The passive infrared (PIR) motion sensor detects movement of infrared light sources with wavelengths ranging from 7 μm to 14 μm. Since people emit infrared radiation from 8 μm to 14 μm, this an excellent sensor for detecting human movement. Two infrared detector “pixels” allow the detector to filter out changes affecting the whole sensing area, like weather or light.
| Description | Specs (1) | Pictures (4) | Resources (1) | FAQs (0) | On the blog (0) |
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PIR motion sensor, top view. |
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PIR motion sensor with the lens removed, revealing the sensing elements beneath. |
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PIR motion sensor with quarter for size reference. |
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PIR motion sensor, bottom view. |
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