External audio unit for flush mounting with one, two or three columns of bell push buttons
The ultraflat unit for flush mounting, which is completely finished with an aluminium front plate (3 mm thick), is equipped with an adjustable microphone and loudspeaker as well as text fields for personalisation provided with vandal-proof plexiglas (5 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. The flush-mounting box is supplied with this device (see technical information for the dimensions of the flush-mounting box).