FERMAX 3431 Loft 4+N - Universal door telephone, 5-wire wiring system, gypsum mount

I had some doubts about how this would work after reading some reviews! However the fact is it works very well and once you know the wiring schematic it is very easy to connect! I was told a load of nonsense by my M.A. saying I needed a 'like for like' replacement and "Don't buy a cheap one from Amazon". The so called 'specialist' they put me in touch with was very vague about attending and replacing it! Here's my tips for successfully installing one! Firstly don't remove or disconnect any wires from the old one!! Take pictures of the wiring showing clearly which wires are connected to which terminals! If the colour codes are not obvious mark each one with a number corresponding to the terminal it is fixed to! Identify EXCATLY the make and model of the old one and look up on the comprehensive instruction manual to find it in the list! If it's not on there it might not work! The pdf manual can be downloaded in advance from the item description! Once you have matched the old to the new just follow the number code for your old handset to the new one! That's it! Make sure you also check the correct setting of the SW2 (Z or E) switch! All in all this has probably saved me over a hundred pounds on using a 'specialist' company!!

Initially I was concerned about the ease of instalment due to some of the reviews. It turned out to be quite straightforward so I thought I would outline it in a review. Here is how I set it up:1. First I took the cover off our old intercom unit, which was a Comelit. See image 1.2. Fermax Loft 3399 comes with a wiring manual. See image 2. From the labels of the wires in the previous step, I figured out which wire goes where and which switch to set.3. Once the wiring was done, I put the cover on and tested. That was all. See image 3.Now, if my previous intercom brand wasn't in the wiring manual, I couldn't have installed it with such ease; so, I'd say check that before you buy.The unit looks good and feels solid.

Installation was easy enough, there is a comprehensive guide to replacing other manufacturers phones with wiring guides, just be sure to note the colours and where they go BEFORE you disconnect the wiring from the old phone. There are volume controls on the board inside the phone which you may need to adjust after installing. The only complaint I have is that the volume of the ringer is very high and not easily adjusted.

Very poor quality. Sound quiet. And working not properly. I not recommended this product.

The first one I bought had a fault with the internal buzzer and the instructions were very basic, so it took a while to figure out it was the entry phone that was faulty not my wiring skills! Quite frustrating, but I returned it & it was replaced very quickly. Took 10 mins to install & works well.

+As presented on the picture, good size, decent voice quality-Complicated installation, poor manual, one signal option (loud)

What can I say, it does what it says on the box, was easy to connect, comes with a manual and looks good. You don't need to be an electrician to connect it, I just found a manual from my old intercom online, took a photo of how wires are connected, in the manual read which wire goes to which terminal and put cables in the corresponding terminals on the new one. Replaced old intercom Comelit Vox 2000 from late 80s early 90s.

Sadly, after reviewing and doing a little homework before purchasing this item. It turned out to be a waste of time. The product represents good value for money but, despite what I have read, it is not compatible with the Videx entry system. I am reasonably capable of wiring but in this case called in a professional to rewire based on a photograph taken of the original wired entry phone. He could not do it either and fortunately didnt charge me for the hour of his wasted time. It looks nice on the wall but unusable. Guests will just have to climb the 6 flights of stairs and ring the doorbell!....Value for money if its Compatible!