These devices are necessary to increase the level of comfort and safety., as well as for additional control over access to premises, strangers cannot very easily get inside. Also high-quality intercom can protect against unwanted guests.

Intercoms differ in a set of functions and technical and organizational aspects.. From feature set, which are provided in the intercom, its cost also depends (ability to record audio, video, have an additional video channel, installing additional memory).
Types of intercoms
Intercoms in their wide variety are divided into two main types: video intercoms and audio intercoms. Video intercoms provide the ability to see the interlocutor and, based on the installed video camera, they are divided into analog and digital. Different models may differ in image quality and monitor size. The intercom can be built-in, or can be made in the form of a regular tube. Intercoms can be equipped with an anti-vandal system.
Device data also, depending on the number of connected subscribers, There are low-subscription and multi-subscription.
To choose the right intercom, it is advisable to consider the following factors:
- climatic features of the region (temperature range, conditions in which this device can operate);
- maximum number of subscribers (expedient, so that the quantity exceeds 5-10, eg, for reprogramming one of the cells in case of failure of those involved);
- type of access control device (the intercom opens using a key, cards, electronic device, numerical code);
- type of intercom and necessary functions.
You can learn more about how to choose the right intercom in the video for this article.. The film presents advice from experts who work in the field of intercom installation.. Enjoy watching. If you decide to buy an intercom, we recommend that you visit the page http://domvideo.com.ua/catalog/domofony/.