You have made other threads accusing that they're a scam. Refer to the links below;
You have also posted on stake's thread and then stunna has answered you. I think that he won't get on this thread with this another thread you've made.
I am not technical on this one but I've found an article that has the same thing about this sensor:
Why are websites requesting access to motion sensors... on my desktop?A lot of interesting information I've read down there on the comment section and as well as the article itself.