Animal immunity motion sensors

Animal immunity

— a feature found primarily in motion sensors, including some models for lighting, and some IR barriers. The general idea is clear from the name: this feature allows you to avoid triggering the sensor on cats, dogs and other animals. Such immunity can be useful not only in the presence of domestic “living creatures”, but also in other situations: for example, if neighboring cats can enter the yard served by the sensor.

Note that the threshold for this function can be either fixed (for example, “from 20 kg”) or configurable; this point should be clarified separately. And in IR barriers with this function, a different principle is usually used — determining the height of an object. To do this, the device generates two (or more) parallel beams at different heights, and the short-term shading of the lower beam, which is typical for small animals, is not perceived as a trigger.