Simple wall-mounted printed circuit board with base for Nikobus push button

This wall-mounted printed circuit board connects a single or double bus push button to a flush-mounting box. It is also suitable for use on uneven walls. Would you like to be able to re-use existing flush-mounting boxes? Then you can click together several wall-mounted printed circuit boards with bridges. It is easy to combine with other Niko flush-mounting devices. The connector has 4 poles. The bus push button is mounted with the click mechanism. The single wall-mounted printed circuit board is attached to the wall with screws or claws.