External audio unit for surface mounting with one column of bell push buttons, 16 mm
The compact unit for surface mounting, which is completely made of aluminium, is equipped with an adjustable microphone and loudspeaker as well as text fields for personalisation provided with vandal-proof plexiglas (4 mm thick). The maintenance-free, gold-plated push-button contacts guarantee a long lifespan. The push buttons can also be used for switching the light. Thanks to the two-wire technology, an existing bell push button can easily be replaced by an external audio unit.