Display type
Type of display installed in the intercom.
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Colored. Color displays are slightly more expensive than monochrome displays, but in our time this difference is extremely insignificant (especially compared to the price of the intercom as a whole). And the image on such screens turns out to be as reliable and pleasing to the eye as possible. Especially on
IPS screens. Therefore, this option is used in most intercoms with screens.
— Monochrome. Black and white screens that can only reproduce shades of gray. They are cheaper than color ones, however, the image on such a screen is not as high quality - and the difference in price does not always justify the difference in quality. As a result, such screens are used much less frequently.
Models are also produced that
are not equipped with displays at all - these are primarily audio intercoms (see “Device type”), as well as some IP intercoms that do not support video and are configured from a computer via the network.
Touch buttons
The presence of
touch buttons in the design of the intercom.
Unlike mechanical ones, such buttons do not need to be pressed in — they do not work by pressing, but by touch, which is somewhat more convenient. However, the main advantage of touch panels is still in a neat appearance and resistance to dirt. Such panels look modern and technologically advanced, they do not have protruding buttons that make it difficult to clean, and there are no gaps between the buttons and the panel itself, where dirt can accumulate. However they are somewhat more expensive and more difficult to manufacture than push-buttons; this is imperceptible to the average user, but is a disadvantage for manufacturers. That is why sensors, for all their advantages, have not supplanted traditional buttons.
Consumption (during operation)
Power consumption of the intercom in the operating mode. Usually, this item indicates the value for situations where the device's functions are used to the fullest — in particular, when the display is on and the speakerphone is on (if any, see above). Note that the consumption in the operating mode rarely exceeds 20 W, so in most cases it is more of a reference, and not a practically significant parameter.
