Part 2: How to Choose your Intercom and Doorbell?
What are the points to check for choosing an intercom
A flush mount will offer less vandal grip than a protruding model, which can be attached to a variety of media. Check also that the board is protected from the weather by IP standardization.
A backlight is very convenient for nighttime use, especially if your intercom is not located in a lighted area at night.
Question strength and longevity, aluminum combined with Zamack offers a very good report!
What are the different degrees of IP protection
n all electrical and electronic equipment intended for outdoor use, the IP code is followed by two digits. The figures behind the two letters represent a degree of protection against the weather to which the equipment is subjected. To read this degree, you just have to interpret the two figures:
The first :
0, no protection;
1, protection against any solid body greater than 50 mm;
2, protection against any solid body greater than 12.5 mm;
3, protection against any solid body greater than 2.5 mm;
4, protection against solid bodies greater than 1 mm;
5, dust protection;
6, protection against dust.
The second :
0, no protection;
1, protection against condensation;
2, protection against a small drop of water up to 15 ° from the vertical;
3, rain protection up to 60 ° from the vertical;
4, protection against any splashing of water from any direction;
5, protection against any water jet;
6, protection against any projection type sea package;
7, protection against short immersion;
8, protection against permanent immersion.
It only remains for you to combine the two definitions to know the degree of protection of your camera and all electrical equipment!
How to choose a videophone
A videophone is an intercom whose external deck is equipped with a camera and whose handset is equipped with a screen. Images can be in color or in black and white. Make sure the outdoor deck has lighting or a night mode to see your night owls. Pay attention to the screen size for the indoor stage. On a big screen, you will see better your visitors! In return, the platinum will occupy more space. Some videophones take a picture of your visitors in your absence, a little like an answering machine!
Question quality image, the choice is divided between digital and analog. The first offers an optimal image quality while the second may encounter some interference resulting in an image sometimes blurred.
The viewing angle is also a criterion, the higher it is, the wider the angle.
High-end models of videophones allow connection with smartphones.
1. In the renovation, opt for wireless systems and construction, ask wired.
2. In the apartment, if you have a small garden, a bell may be sufficient.
3. If you have a large garden, are a little distressed or in a "neighborhood a little hot", opt for an intercom or a videophone which, coupled with an electric strike or an automated gate are not only safe but also very comfortable. Not to mention barricading, ignoring unwanted visitors is great!
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