Once you've opened your front door, the uninvited visit can only be got rid of with much embarrassment. It is better, to know beforehand, who to open. Surveillance cameras above the entrance area offer the simplest and most effective option, to distinguish uninvited from welcome visitors.
The term "video surveillance system for the front door" sounds complicated and time-consuming at first. But the technology itself is much simpler. Such a system usually consists of three components: the camera, the transmission unit and the screen. There are basically two options, forward the captured image: via cable or radio. The latter has the great advantage, that you do not have to chisel slits or holes for laying. However, the picture quality can fluctuate a lot with radio. Of course, the positioning of the camera is much more important for the meaningfulness of the image or film. You should install them like this, that you have the entire entrance area (front door or garden gate) to have an eye on. It should be hung like this, that it is safe from willful damage by others, but of course not that high, that you can only see the head of hair of your visitors. Mounting under a roof overhang is ideal, the camera hangs there discreetly, protected from the weather and not too high. Of course, when transmitting images via radio, you also need a receiver, which is ideally already integrated in the corresponding monitor. Most manufacturers of such systems therefore also offer complete sets, where the components are perfectly matched to each other. If you don't want to have an additional monitor in the house, you can also have the image transferred to a suitably equipped PC or to your television. The camera is constantly in operation on most systems, So you always have an image, that you have to click away to use your devices normally.
The prices for such systems can be described as cheap in the simple version. From about 70 You can already get a wireless set with a color camera. However, you can quickly reach the 1000 euro mark for entire systems with several night-vision-capable cameras and TFT monitors.
VIDEO CAMERAS: THEY MISS NOTHING!
1 This camera offers a particularly high image resolution and night vision capability. All in all 27 integrated infrared LEDs, with which they at night the entrance area within a radius of about 15 m illuminated (Lupus). 2 Up to 100 This camera offers m range of vision, the color images are then transmitted wirelessly to the television or PC (Conrad Electronic). 3 This camera transmits picture and sound, on request also on your television. Here, too, built-in LEDs ensure night vision capability. I only black and white at night, color images in daylight (Conrad Electronic)
4 This so-called "high-speed dome" is very unobtrusive in design. He's swinging- and tiltable, provides color images and has an 18x zoom (Balcom Electronics). 5 This camera brings its color images recorded with a 62° wide angle to the monitor via an integrated transmitter, even a microphone is built in (Lupus Electronics).
FUNK- AND TELECOMMUNICATION SERVICE
This radio receiver is for the video cameras 2 and 3 (see box on the left) equally suitable. It is best placed on the monitor, where you want the image to be, i.e. TV or PC. Power is supplied via the normal 230 V power supply unit. A total of three reception channels offer space for up to three video cameras, So you can monitor the front door and garage or garden gate at the same time. The receiver has a metal housing and is supplied with an audio/video cable (Conrad Electronic).
This combination of intercom and video camera is particularly nicely designed.
Within- (links) and outdoor element are connected to each other by a two-wire cable, which is also used to supply the door opener. You can mount both panels on the plaster, you only have to drill a hole for the cable to pass through. The color camera in the outer panel is capable of night vision (Conrad Electronic).
MONITOR: EVERYTHING AT A GLANCE
1 A small monitor in the intercom system is ideal and very discreet. Just, if you already have such a system in the house, replacing it with one with a monitor is child's play. About special diodes in the camera is sufficient 3 Brightness guaranteed even at close range (Balcom Electronics). 2 Up to 180 various electronic functions can be integrated and controlled on this so-called modular function column. Whether alarm system, interlocutor, surveillance monitor or the banal light switch for the hallway – everything disappears behind the elegant stainless steel front. The highlight: The column can be placed anywhere, change at any time- and expandable and can even be easily taken with you when you move (Tour). 3 A large TFT monitor gives you the opportunity, to watch the images of several surveillance cameras at the same time in a comfortable size and resolution. This way you can all major- and side entrances and always have an overview of everything. For this purpose, screen sizes from at least 20″ to recommend. This allows you to display up to nine surveillance images at the same time. Each of the manufacturers mentioned here offers such monitors individually or in a set with camera and receiver, however, the standard monitor on your PC j is sufficient (Balcom Elec-tronics). 4 The TF receiver in mobile phone format is particularly handy.
It gets its power from lithium batteries, the device can be connected to the TV (Lupus Electronics).