Things to consider when choosing a door intercom system. A door intercom system is a method of communication meaning that messages can be sent from inside a building to outside through a door-mounted speaker. It is useful for visitors and visitors or those who do not wish to speak, such as deaf people.
It is most commonly used at businesses, but can also be found in homes and other places. There are many types of “door intercom systems“, each with different uses, which vary by model. Although most door intercoms transmit audio signals only and no video, some models have video capability too.
The audio quality of a door intercom system is mainly determined by microphone sensitivity, audio processing performance, and speaker sound quality. The microphone sensitivity directly affects the audio signal input level to the internal circuit, and the smaller the input level is, the lesser distortion of signals caused by noises.
In addition, when Noisy environments are possible to increase microphone sensitivity indoors. The performance of Audio processing is mainly characterized by two parameters: the first is whether it can prevent humming sounds generated when there are magnetic fields around the system; if it cannot prevent, then it needs to use power supply transformers or other methods to eliminate such interference.
The second parameter refers to whether it can eliminate sounds generated by radio frequency devices that interfere with radio frequency communication systems. The speaker’s sound quality refers to the sound coming from the speaker. Usually, the better its performance, the smaller its power consumption.
Door intercom can be divided into two types according to operating range: one that uses infrared light to transmit messages (infrared communication) and another that uses radio frequency to send signals (radio frequency transmission). Both have their strengths and weaknesses, but in general, infrared transmission has a longer working distance.
This refers to whether it needs an external wiring connection or not. The wiring-free type is mainly used in outdoor applications, while wired intercoms are mainly used indoors.
Security is a very important factor in the selection of door intercom. Generally, all door intercoms can prevent strangers from entering the building and can be operated using a remote control receiver. Some models, such as the digital door intercom systems, have advanced functions such as facial recognition and fingerprint verification technology.
The appearance of the door intercom is directly related to customer satisfaction. If a customer feels that the door intercom has a high-quality appearance, it will be very attractive to them.
Different types of door intercoms have different installation methods. Please choose according to your actual situation.
The price of a door intercom is mainly determined by its performance and appearance and audio quality but also depends on other factors such as its size, etc. You need to choose a suitable one according to your actual needs.
If the door intercom you have selected requires wiring and has to be installed, it must be installed within a certain time. Public safety authorities strictly control the time for installation work to protect people’s security and raise people’s awareness.
If you need to install the door intercom system yourself, you should pay attention to the installation and commissioning process. The installation is a step that must be completed by qualified personnel, so it is best to choose a professional manufacturer as an intermediary, who will not only install the door intercom for you but also carry out debugging for free.
If someone wants to enter or leave a house or building, they can press the call button on the door intercom and communicate with the supervisor inside using microphones. A person outside the entrance can talk directly with that inside through a speaker at all times. It can prevent intruders from easily breaking in and will give the owner a more secure feeling. A person inside can also listen to the person outside.
The door intercom can be used to let people enter the house or building. In addition, those entering the building can communicate with that inside through a speaker at all times and prevent intruders from entering without permission, which is good for security and convenience. When you are away, you still have confidence that your family members or guests have 24-hour supervision at all times; when you are home, you will know who is coming in contact with your door keypad signal wirelessly at any time in your apartment.
When you enter the house, you can contact your family members through the door intercom, and then let them know who is coming in. Those monitoring can also talk to others outside at any time during the entire process, and prevent strangers from breaking into without permission.
Some electronic doorbells are also equipped with an LCD screen to show relevant information on the screen. There will be no need for you to open the door to check what information you need if it is equipped with an LCD screen that displays relevant information such as temperature and humidity data, indoor air quality levels, and video surveillance system images, which can help reduce troubles by providing key information when needed.
Since the door intercom is wireless, you can use the remote control to operate it and will not need to go out to go in and out if it is equipped with a microphone and speaker. The structure is simple and convenient. It can be set up in a compartment without occupying too much space so that it not only saves space but also saves labor costs.
For now, the door intercom is one of the most commonly used devices in the world. This is because it has a variety of functions and advantages that can be used to meet different security and access control needs.