Overview on Features
A door intercom system allows you to identify guests even before you get to check the door. However, there are also other types of intercom system such as the room-to-room, and this lets you communicate to people who are in another room or office. What's more, some intercom systems have both functions, although it still depends on the consumer to determine the type he or she prefers based on the situation.
When it comes to advanced models of intercom system, there are color cameras included. The good thing about this feature is the image is in full color during daytime while it is black & white during night. In addition, there are other great features including the 32-picture memory that is equipped with a date and time stamp. Hence, you can check information on images recorded when you are away. To make it even better, there are hand-free intercom systems available, which is perfect when you have so many items on your hand to even hold the handset.
The monitor controls included are the ones that allow you to change the settings for the sharpness or brightness orimage, and there is even a chime volume that you cannot find in standard models. In fact, economy or basic models do not come with a door status monitoring feature.
Another thing to think about aside from the features is the ease in installation. With the budget models, installation wiring can be an issue. For instance, intercom systems in this level needs a 4-conductor cable for the doorbell station and monitor. Unfortunately, there are usually only 2 wires for your current doorbell wiring, so it can be expensive once you factor in labor and cost of having additional wires.
There are some intercom systems that allow you to view images outside the door even without having the doorbell activated. This way, you will feel at ease since you can be aware of the people who are looking to get inside your home. There are even weatherproof and surface mounted intercom systems, as well as a remote door release functionality. Yet, this can be a complicated feature that requires the help of a professional.