Surface Temperature sensors (infrared) look like cameras or like a brick with a hole in it as well and are used for efficient winter maintenance

My country have them as well (it is a kit from a local provider). But of course my country sneeky deployed a Chinese smart cloud cam on top as well (a Hikvision Cam).

You even see the hikvison cam on the Website of decentlab, but when you click on the kit, you see, that the cam is not part of it.