Please note if the camera is infrared, then it is unable to put a plastic cover on it because it will interfere with the infrared lights coming through.
You will need to use infrared transmissible materials to make such a cover. However, that will result in additional expenses.
That’s why infrared cameras are usually not covered.
If you put cheap plastic cover around your infrared camera, then at night it will generate blurry images.
However, if you are not interested in having the infrared feature, you may be able to put a plastic cover around the camera.
Our 502S and 205 series are infrared-free and thus has an external plastic cover.