An intercom allows communication with the outside without having to open the door. Available in audio and video versions, this device enhances the security of the home while optimizing its comfort.
The available intercoms have certain characteristics to be aware of.
- This device replaces the bell or chime used to notify the arrival of a visitor.
- It allows conversation with the person ringing to identify them before opening the door.
- It allows remote door opening if the door is equipped with an electric strike. This way, the user avoids going down the stairs or going outside in bad weather to open the door or gate.
- Wireless models use radio waves for communication transmission. A long range is preferable to avoid interference caused by obstacles, particularly walls.
Some models are also available with a video camera. They are then called videophones.
- The videophone not only allows communication with the visitor but also visual identification thanks to the image displayed on the screen.
- Some devices display color images while others display black and white images.
- Some external units are equipped with lighting or a night mode to facilitate the identification of nighttime visitors.
- While some devices use the digital system, others are equipped with the analog system.
- Connected models offer users the possibility to view images via their smartphone.
Intercoms are intended for outdoor use. Therefore, they must be protected from weather conditions and vandals.
- As much as possible, it is preferable to embed the unit for better protection against vandalism.
- The IP rating indicates the degree of protection of electrical equipment against weather conditions. Each IP code is followed by two digits. The first (from 0 to 6) refers to protection against dust and solid objects, while the second digit (from 0 to 8) indicates the degree of protection against moisture.
The intercom allows optimizing home security and improving comfort. It is chosen based on its power supply, technology, options, and range.
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