









🔔 Upgrade your entryway with timeless tech—because your building deserves the best!
The FERMAX 3431 56304 Interphone 4+N VEO Universal is a sleek, neutral-colored replacement handset designed for easy installation on legacy 4+N wiring systems. Featuring a compact, lightweight ABS plastic build and powered by 100V AC, it offers reliable communication for residential and commercial entrances without the hassle of batteries. Ideal for professionals seeking a seamless blend of vintage compatibility and modern quality.





| ASIN | B08FMC9KM7 |
| Batteries Required? | No |
| Batteries included? | No |
| Battery Cell Type | Sealed Lead Acid |
| Battery description | Lithium Ion |
| Colour | Neutro |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,991) |
| Date First Available | 27 Aug. 2020 |
| Display style | LCD |
| Finish | Shimmer |
| Included Components | INTERFON 4+N VEO UNIVERSAL FERMAX |
| Installation method | Surface |
| Item Package Quantity | 1 |
| Item Weight | 53 g |
| Item model number | 3431 |
| Manufacturer | FERMAX |
| Material | ABS Plastic |
| Number of Pieces | 1 |
| Part Number | 3431 |
| Power Source | CA |
| Product Dimensions | 4.3 x 8.2 x 21.4 cm; 53 g |
| Special Features | Keine besonderen Funktionen |
| Usage | Entrance systems for buildings and homes |
| Voltage | 100 |
| Wattage | 100 |
G**E
Replacement for 1980s installed handset
Great item. Was worried about wiring it in but easy to follow the wiring colours. It comes with a wiring diagram for lots of old handsets which included mine (replacing the original handset from a 1980s built flat). No issues and good quality.
C**A
Easy to install, very good customer service
Good quality product to replace our (very) old intercom handset. The customer service is great, installation cristal clear and the value for money is good! However! Be aware! If you planning to replace your old, awful buzzer and hoping you gonna get a nicer ring, you will be disappointed as although the handset supports this, is your intercom system which needs to support electric ring option instead AC buzzer.
A**R
Great Entryphone Intercom!
The FERMAX 3431 56304 INTERFON 4+N VEO Universal replaced an old 1950s entryphone / intercom in one apartment in a block of flats. It is easy to install, if you follow the instructions. The buzzer is good, not jarring, and the in/out audio are very good with great clarity.
R**T
Awful product
Box damaged when arrived looked opened, buzzer can not be heard more 20cm away from unit also speaker and mic does not work. Awful product
S**N
Excellent replacement for Urmet 1130 / 11
Used as a direct replacement for a old Urmet 1130 / 11. I have attached the old wiring to the new Fermax incase this is of use to anyone
M**R
Door Entry
This was the perfect replacement for the Raytel system handset that was installed
N**I
Poor product
The handpiece didn't stay on base when installed and constantly buzzing. Paid electrician 80.00 to install. And then had to remove it. Lost 80.00 for this piece of rubbish
M**I
Stopped working
Worked for less than 2 months! Have to buy another one!
T**S
El Fermax Teléfono VEO 4+N Universal cumple perfectamente su función. Lo instalé para sustituir un telefonillo antiguo y la instalación fue sencilla, con un funcionamiento inmediato. El sonido se escucha claro y el botón de apertura responde bien. El diseño es simple y discreto, sin florituras, pero se nota que es un producto fiable para el día a día. Ideal si buscas un repuesto universal sin complicaciones.
S**O
possible I needed another model cant connect it
T**T
⭐⭐⭐⭐⭐ Sehr einfache Installation. Die Gegensprechanlage ist schlicht gehalten und funktioniert einwandfrei. Trotz fehlender Erfahrung mit den Anschlüssen war der Einbau problemlos, da ich ein identisches altes Gerät hatte und die gleiche Verdrahtung übernehmen konnte. Vom Auspacken bis zur Installation ca. 30 Minuten. Für den Preis absolut in Ordnung – klare Kaufempfehlung.
B**U
Super facile à installer Un tableau d’équivalence très facile à comprendre ça a marcher du premier coup Vraiment je recommande
P**Y
N’achetez pas ce microphone si vous avez un airphone vc-k la sonnerie ne fonctionne pas Même s’il est listé alors vous n’entendez pas si des gens sonnent à la porte et même si ça ne fonctionne pas, la compagnie ne paie pas le retour 21$ canadien de vos poche pour quelque chose qui ne fonctionne pas.
Trustpilot
3 weeks ago
3 weeks ago