Installing a video intercom system at your front door improves your business or home security. A video intercom enables you to not only talk to someone at your front door, but also to see them as well. That gives you more information to make the decision whether you want to let someone in or not.
A video intercom consists of at least two components, a weatherproof camera and door bell button unit that goes at the front door, and a monitor unit that enables Gegensprechanlage you to see who is at the camera. You can get monitors that provide either a black and white or color picture.
Someone presses the doorbell button
When someone presses the doorbell button, live video and audio is transmitted to the monitor. You can then press a button to enable intercom communication with them. Some units have hands-free modes that let you speak without pressing a button, or press the button once and then speak hands-free.
Some cameras have built-in infrared capability that lets you see who is at the door at night even when no lights are on. The video on the monitor will usually be black and white in this mode even if you have a color screen.
If you are willing to install an optional electric door lock, most video intercoms have the capability of unlocking the door from the inside monitor. This saves you trips to the door to let someone in.
If you need to monitor a door from more than one location, you'll need a video intercom that is expandable. You can get video intercoms that not only allow you to have multiple monitors, but multiple cameras as well so you can monitor more than one door.
One video intercom
At least one video intercom has the capability of capturing full motion audio and video when the door bell is activated. The video is stored on a Secure Digital (SD) card that can be retrieved and stored on any PC or MAC. If a potential burglar rings your doorbell to verify if anyone is home before breaking in, this video could be later given to police as evidence.
Most video intercoms mount on the wall, but you can get units that sit on a desktop if you want one in your office.
Having a video intercom at your front door can greatly increase your security. The more information you have before opening your door to let someone in, the safer you'll be. As an example of the kind of tragedy that can occur by letting the wrong people in, on December 9, 2007 four people were shot at “Youth With a Mission” in Denver when the door was opened to a gunman. Video Gegensprechanlage Two of these people died. With a video intercom installed and used, a tragedy like this could have possibly been avoided.
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