In order to mount the button, it is necessary to create a hole or recess in the wall with a diameter of 29.5 mm (for SH-45E)/60 mm (for SH-45TE)/59 mm (for SH-47T). Additionally, make sure to prepare a power cable, additional modules, and a local network connection.
SH-45E
SH-45TE
SH-47T