??? ????? ??? ????????? (diapason level switch) ??? ???? ??? ??? ?? ?? ???? ????? ??? ????? ????????? -????? ???? ????? ????? ??? ??????? ?? ?? ?? ??? ????? ???????? ?? ??? ??? ????? ??? ???? ???? ????? ? ??? ???? ??? ????? ??? ?????? ???? ??? ??? ????????? ????? ????? ???? ????? ????? ???? ??????? ???? ????? ???? ? ???? ?? ?????? ?????. ????? ???