Series 5 Retrofit (Code: BT 5-109)

  • Phone electronics
  • Loudspeaker
  • Microphone

 

 

Thanks to easy installation in your existing letterbox, you can use the functions of the Behnke door intercom devices. The electronics are fixed onto the wall in the letterbox. The microphone and loudspeaker are fastened directly onto the existing speaker holes by means of double-sided duct tape or screws.

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