Um, the application area says indoor, doesn't it? https://de.wikipedia.org/wiki...
At this price, however, I would have little hesitation in installing the thing under the canopy, somewhat "protected from the rain". You can't expect any IP protection classes in this league anyway... https://de.wikipedia.org/wiki...
The technology becomes obsolete every few years anyway, so the things shouldn't last much longer than the warranty period anyway, even indoors ;-)