It does its job very well but it doesn't fit inside the box. I took the board out of the box and put it in a heat shrink to fit. In the end, with a legrand switch it fits just right, if no cable gets in between.

They work perfectly as long as you have good wifi coverage where you place them. They were installed inside the switches. They fit just fine. I have set them to open and close at specific times of the day and they work flawlessly. So far, very satisfied.

Very good, in no case as they said in another school it fits behind a switch, if you are lucky and it has a double brick with digging behind it, if you eat it with a hammer you will fit it