Fermax F-4921 | 2 Way Duox City Audio Kit

£279.22 £232.68
  • This product is available to order. The lead time is normally 2 days
  • An accurate despatch date will be confirmed with you once order is received by our sales team (office hours).
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Fermax F-4921 | 2 Way Duox City Audio Kit

Fermax F-4921 | 2 Way Duox City Audio Kit

This audio door entry kit is ideal for small flats or offices and incorporates Fermax's latest technology. This new and improved digital system represents an innovative and technological leap in the market. It only requires two non-polarized wires for power supply, audio and data transmission.

No more tangles, incompatible connection and impossible installation, with Duox unique 2 wire digital systems installations are quicker.

The Loft handset is made of high-impact ABS plastic with a texturised finish for easy cleaning and ultraviolet protection. It has many attachment points for wall mounting, as well as coiled cord with telephone plug connectors. The handset has a built-in magnet in the earpiece that's ensures the arm stays fixed to the base.

The flush mount entrance panel is made from aluminium with chrome finish call buttons. The polycarbonate name windows have a front access card slot to insert a label with flat number or name. Built-in backlighting ensures the name windows are visible even in low lighting condition.


  • Extendable up to 3 telephone handsets
  • Very easy to install using the 2 wire systems

Technical Specifications:

  • Weight: 2,1349432 kg
  • Size of product when packed: 27x24x13 cm

This kit Includes:

  • 1 x Flush mounted panel with 2 call buttons (Model F-70004)
  • 2 x Duox Loft handsets with door release button (Model F-3420)
  • 1 x Flush mounting box (Model F-8948)
  • 1 x Power supply (Model F-4810)
More Information
Brand Fermax
System Type Audio
Call Buttons 2 call buttons
Panel Mounting Flush mount
Panel Finish Aluminium-Silver
No of Entrance Panels 1 entrance panel
Phone Type Receiver - with Handset
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You're reviewing:Fermax F-4921 | 2 Way Duox City Audio Kit
Fermax Duox 2 Wire System Brochure pdf(3.33MB)
Fermax General Catalogue pdf(9.43MB)
Fermax Duox 2 Wire System Technical Book Part 2, Wiring pdf(30.58MB)
Fermax Duox System Guide pdf(2.62MB)
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