Intercom systems with
video cameras for mailboxes

With video cameras and intercom systems from KNOBLOCH, you are always one step ahead. Our intelligent solutions for your mailbox system not only offer security and convenience right outside your front door, but also a variety of practical functions. Keep an overview of your property and control who comes (and who goes).

A crystal-clear picture and high sound quality make it easy to communicate with visitors – whether you’re at home, in the office or out and about. Innovative technology that makes your home even safer and smarter.

Intercom system sets from COMELIT

Our mailbox systems are also available with pre-installed audio and/or video sets from COMELIT on request. Connection is straightforward thanks to two-wire technology, which allows existing cables from older systems to be reused. No additional costs for new wiring, plastering or painting!

Instead, two wires are simply run from the new power supply unit in the meter cabinet to the built-in loudspeaker in the function box, plus two wires from the power supply unit to the indoor station in each flat (if not already in place).

Audio intercom set

6751W Indoor Audio Intercom

The Mini Audio Handsfree with hands-free function is suitable for surface-mounted installation. It features numerous functions, such as a door opener button, ringtone volume adjustment and ringtone mute (which is indicated by a red LED when the ringtone is muted).

The Mini Audio Handsfree also allows relays integrated into the system to be switched on and off, and enables calls to be made between individual terminals.

Contents of delivery

Audio loudspeaker EU2010
Mounting bracket EU1250A
Indoor audio station(s) 6751W
Power supply unit 1209 (1 to 4 users)
Power supply unit 1210A (5 or more users)
Button interface 3063U (5 or more users)

Video intercom set

Indoor video intercom 6721W
Colour monitor with 4.3’ screen in 16:9 format and modern hands-free function (full duplex). The touch-sensitive buttons enable intuitive operation and offer numerous functions, including brightness and contrast control as well as setting the volume of the audio signal and the ringtone.

What’s in the box

COMELIT SWITCH 1250U intercom screen
Video indoor station 6721W or 6741W
Video loudspeaker 4681 and mounting accessories 1250U
2-wire power supply unit 1210A
Push-button interface 3063D

Video indoor station 6741W with cellular

A door station with wifi interface that means you are always at home! In combination with the COMELIT app, door calls can be answered from anywhere and doors and gates can be opened. With connection to the Amazon Alexa and Google Home voice assistants.

By the way: Potential burglars like to ring the doorbell – and quickly leave when someone answers.

Easy installation with the universal adapter
for intercom mounting

The GC-110, GC-120A and EBOX speech mesh are equipped with our self-adhesive universal adapter. It makes it possible to move the loudspeaker and microphone very close to the front of the system in order to avoid feedback and other transmission interference. The adapter is fitted on site by the electrician and is compatible with all commercially available built-in speakers.