
One package has been opened. There is a plastic circle pasted there, it was opened. But, everything works. I'm wondering where to put them on guard. )))) They write that it is inconvenient to fix. Yes, it is molded horizontally on the wall and cuts the movement. This is more for the entrance, as I understand it. If someone understood how to change the batteries, then he would say thanks for the answer, although not relevant yet.
