Security camera comparison 2018

Purchase advice for surveillance camera comparison or test 2018

  • Security cameras for home use are cheaper than ever. Space-saving digital technology allows the housings of the devices to continue shrinking. Depending on the size and video quality, recordings of the surveillance camera can be stored on so-called memory cards for several days for subsequent evaluation.
  • IP surveillance cameras can even be wirelessly connected to the home network via Wi-Fi. With IP cams you can also see what the camera records on the go. All you need is a PC connected to the Internet and a standard web browser.
  • The best surveillance cameras convince with espionage technology à la James Bond: Motion detectors, night vision and alarm loudspeakers do not give burglars a chance and bring you a peaceful night's sleep.

Security camera comparison 2018: 2018

Total surveillance is not just a topic for the great literature. What is becoming more and more apparent in the public sphere is also widespread in private life in 2018. Camera surveillance can be realized by digital technology for everyone and modern network technology makes the installation of surveillance cameras child's play. Miniature cameras quickly find their place in the living room and provide you with a picture of your living room at any time, for example. Swiveling and tilting Outdoor cameras record the events in your garden and store the pictures for several weeks if necessary. It is no longer a problem to transfer the video images wirelessly via a wireless connection to the computer in the study.

In our surveillance camera comparison, we summarize the most important facts about the topic for you. Take advantage of our purchase advice and find your personal security camera test winner.

1. Security cameras for home use

Security camera comparison 2018: security

Two small cameras connected to the PC via a router: modern security for your home.

Video surveillance has been a popular field of application for video cameras since the beginning of recording motion pictures. However, hidden cameras could not be constructed in 1905 by far. The huge video recording devices were also very loud at first. As technical development progressed, device designers increasingly reduced their size and noise levels. Since moving pictures are recorded digitally, Manufacturers of security technology also produce very small mini-surveillance cameras.

With the possibilities of home networking and the constant improvements in the field of digital video technology, surveillance cameras find more uses than just government surveillance of public spaces, building security and theft prevention in trade or industry. Private users, for example, use a WLAN camera to monitor the video of their property or house - Also in connection with an alarm system.

As in public space are also for home users Security needs the main intention for the acquisition of security technology, Rarely do users use the technology for video surveillance as a spy camera, whereby the legislator formulates clear restrictions here.

Legal restrictions: Privacy cameras for home use are only allowed within your privacy. You may therefore film your driveway, your garden or your living space as desired. It is forbidden to spy on your nanny or cleaning person with hidden cameras.

A spy camera is generally prohibited in Germany for private use. Ultimately, you are not allowed to record events in public space. When locking your camera, make sure that the recording area at the entrance ends.

With an indoor or outdoor camera can be Typical application scenarios for property security and personal safety realize:

  • Property and building security
  • Process observation for the optimization of action routines
  • Prevention and investigation of criminal offenses (eg theft, vandalism, violent crime)
  • Observation of chronically ill persons in the household
  • Observation of children
  • Surveillance of pets

Security camera comparison 2018: security

Using a mini-spoin camera is prohibited under public law in German law.

For various tasks, the devices bring various features in many surveillance camera tests and differ in the equipment sometimes strong: Whether you should buy a miniature camera, wireless camera, outdoor camera or, for example, a network camera, decides of course the purpose.

2. What you should know about camera technology

Analog cameras with the ability to take pictures in PAL or NTSC format with 4: 3 aspect ratio, are from the market completely gone, All our following statements therefore refer to the category of digital surveillance cameras.

Surveillance cameras are primarily video cameras, They record moving images and display them on output devices such as PC monitors or smartphones. Of course, the images of a digital surveillance camera can also be recorded and played back in time. The following graphic characterizes the functionality of a digital video camera:

Security camera comparison 2018: 2018

Cameras and video cameras are similar, since both as the heart of a so-called Active Pixel Sensor (APS) use. An APS - also called a CMOS sensor - is an electrical semiconductor that is able to transfer incident light pulses into electrical voltage states because of its photosensitivity. Millions of tiny, light-reactive semiconductors are lined up next to each other - each one subsequently represents a pixel in the video The functional principle of a video camera - regardless of which brand - is characterized by the following components:

componentfunction
lens

Security camera comparison 2018: camera

  • incoming Light is captured by the lens and broken (focal length).
  • Through an integrated lens in the aperture, the Intensity of the incoming light be regulated.
  • Smaller apertures increase the exposure time and increase the depth of field and vice versa.
image sensor

Security camera comparison 2018: security

  • The focused light will be on the photosensitive sensor thrown (formerly: photographic film).
  • Light pulses are output by the sensor as electrical voltages and converted in a digital data stream.
processor

Security camera comparison 2018: comparison

  • Become digital data further processed in the processor.
  • Brightness and color values are coded in a specific format (eg MPEG or AVI).
Storage

Security camera comparison 2018: comparison

  • The image information contained in the encoded files will become transferred to a storage medium.
  • Mostly Flash memory cards for storage used.
  • Alternatively, digital cameras have interfaces to the Transfer data to compatible devices (Firewire, HD-SZI, LAN / WLAN etc.).

3. Classification characteristics of a surveillance camera

3.1. Indoor vs. Outdoor camera

Security camera comparison 2018: comparison

Always pay attention to the IP protection class when making a call so that your outdoor camera is protected against dust and splash water.

For permanent external surveillance systems: Outdoor camera should be effectively protected from dust, dirt and water, Pay attention to the purchase of a security camera on the Degree of protection of the class International Protection, Corresponding cameras are with a IP code Provided. IP codes consist of two digits: For IP-67 the 6 (highest possible value: 6) stands for dust and dirt resistance, whereas the 7 (highest possible value: 9) characterizes the protection against penetrating water. Keep paying attention stainless housings and wall or ceiling mountings.

Also clarify whether the outdoor camera can be used even in extreme temperatures. The installation of cameras in closed rooms is simple and requires little effort, Pay particular attention to an appropriate housing size and a suitable base.

3.2. Fixed vs. Flexible visual adjustment

Security camera comparison 2018: camera

With a rotating and tilting camera, you can capture a much wider field of view.

Video surveillance may require static or flexible viewing angles and visibility. If you want to guard your garage entrance, you are helped with a fixed camera with fixed lens focal length and wall or ceiling mount.

Motorized swiveling and tilting arms or so-called dome cameras are suitable for more flexibility. These have a half-round, tinted glass, behind which is a swivel-mounted camera with zoom. Within a tilt angle of 180 degrees, the dome camera can be rotated once in a circle. The mechanism is called PTZ: Pan = Pan, Tilt = Tilt, Zoom = Pick Up!

3.3. Internal vs. External storage

If you want to save the video images for later evaluation and further processing, video surveillance cameras with built-in flash memory are ideal. Depending on the storage capacity and the selected image quality, you can record several days on the memory card and then conveniently look at the PC. Surveillance cameras can also transmit their images via cable or wireless connection to external recording devices such as PCs or hard disk recorders.

3.4. Wired vs. wireless cameras

Security camera comparison 2018: camera

A remote-controlled wireless camera enables the operation of external devices.

Wired cameras are used in professional safety technology. A coaxial copper cable, ie a cable specially shielded against interfering radiation, serves for signal transmission. The high-definition serial-digital-interface (HD-SDI) type of connection uses the same cables and connections that were already common in the analog transmission of surveillance images.

Meanwhile, so-called Network cameras (IP cameras) established in the market. They either use a network cable or wirelessly transfer their data wirelessly to a computer.

Night vision function: Surveillance cameras with additional infrared sensors are suitable for transferring well-resolved images in a dark night-time environment. The invisible to humans infrared radiation can be represented by imaging techniques as a thermal image.

In this case, differences in the infrared radiation are measured by the sensors in the camera and in so-called false images shown. These can be used to help organisms with a high body temperature from low-tempered, inanimate objects color effects differ. Other infrared LEDs in a surveillance camera even help to illuminate the room to be monitored better.

4. IP Cameras - Surveillance Systems for the Home Network

Resolution of an IP cam
  • VGA connector: 640 x 480 pixels
  • HD ready port: 1,280 x 720 pixels
  • Full HD connection: 1,920 x 1,080 pixels

Very popular today are IP surveillance cameras - also called network cameras. The IP cams are connected with a network cable, thanks to the Power-over-Ethernet (PoE) function, only one line has to be used for power and signal transmission.

Anyone who has the disapproval of being able to route a cable to the outside can do so with appropriate range, a wireless connection to the IP camera produce in the outdoor area. The wireless surveillance cameras receive power via a supplied battery. Once connected to the network, simply assign an IP address to the IP Surveillance Cameras, or have it done automatically by the DHCP feature of your router.

In the domestic network, the IP surveillance cameras can be controlled via app, supplied software or conveniently via web browser. The trick: With the appropriate configuration, a network camera can also be localized from any web browser via the Internet. No matter where you are, as long as you have Internet access, you can view the images of your surveillance camera directly in the browser from a distance. But watch out for Wi-Fi wireless cameras with batteries sufficient battery capacity, so that the recording does not break off prematurely.

Security camera comparison 2018: camera

A combination of motion detector, alarm system and camera provides extended protection.

The possibilities of IP cams are very extensive. In conjunction with an alarm system Network cameras can be perfectly integrated into the environment both indoors and outdoors. Depending on the model, wall or ceiling mountings are available, the surveillance cameras have swiveling and inclinable suspensions (PTZ function) and can be equipped with various flash memory cards.

In addition, network-capable video recorders are also available for external recording, Networked video recorders (NVRs) take on the function of a video server with a variety of video editing options in extensively networked smart homes. For this purpose, an NVR combines a lot of storage space with a large software package for archiving and editing moving images.

Motion detector: Whether WLAN camera in the outdoor use or IP camera for the living room - Many devices also provide motion sensors and start the recording only when something is happening in the environment of the surveillance camera. This saves power and storage space.
If set appropriately, the cameras also send one Push message to a smartphone app or email addressso that you are quickly informed about possible troublemakers.

Advantages and disadvantages of an IP camera:

  • flexible integration into a computer network
  • wireless WLAN radio transmission possible
  • Video images can be viewed at any location via the Internet browser
  • require partly extensive technical experience
  • are susceptible to interference due to their integration into the computer network

5. Questions and answers about surveillance cameras

5.1. Which resolution is best for surveillance cameras?

The intended use is the decisive factor in this question. If you do not want a detailed, well-lit shot because you only want to record motion in a room or on the outside of your property, then a VGA camera with a resolution of 640 x 480 pixels will do. The larger and more detailed the recorded image should be, the higher the resolution should be.

Security camera comparison 2018: comparison

Affordable, but with low resolution: A VGA port does not provide high-resolution images that allow people to identify items.

If you have a Surveillance camera to protect against burglary and theft use, then you should also be prepared for the emergency. Because if personal valuables have been stolen from you, then it is important to be able to recognize the perpetrators on the recorded surveillance videos. High-resolution cameras with 1,280 x 720 pixels or even 1,920 x 1,080 pixels are ideal for this.

5.2. How long can a surveillance camera record?

A digital surveillance camera records recorded images either internally or externally on a storage medium. This can be a small hard drive, but most manufacturers use a flash memory card. The maximum recording time depends on two factors: First, the capacity of the memory card or hard disk and second, the recording quality of the video.

Because almost always you can choose between different shooting modes that affect the picture quality. A low-resolution video in VGA format with little depth of field, contrast and brightness requires little storage capacity. The higher the image quality, the greater the storage requirement on the storage medium. For external recording devices, CCTV cameras offer a variety of digital connections that can be used to transfer the image to a PC or networked video recorder. With the help of a special software, the videos can then be processed further.

5.3. How is a surveillance camera installed?

Security camera comparison 2018: 2018

With an IP cam, you can also see what the camera is recording on the move.

Installation and connection of a surveillance camera differ according to the location of use. If you want to install a camera with IP rating 67 to monitor your driveway, you will need a wall or ceiling mount. To set up a mini camera to support a baby monitor in the nursery succeeds without additional brackets. You can also do without dust and water protection indoors.

In any case, a camera requires electricity, while put many models in our surveillance camera comparison on rechargeable batteries, Otherwise, you will need to route a separate power cord between a power outlet and the camera. IP cameras often benefit from the Power over Ethernet (PoE) function, The network cameras receive both their Control signals as well as the current over the same line and simultaneously send the recorded images to a computer or NVR.

However, this bi-directional cable connection via commercially available network cables carries rather little power and is not suitable for the power supply of motorized swivel arms. Before laying the cable, make sure that it is possible to operate your camera via PoE. To transfer the recorded images to an external recording device, the interface HD-SZI or a wireless wireless LAN connection is often used.

5.4. What does Stiftung Warentest write?

A comprehensive article about the product group of the surveillance cameras did not appear yet with the most well-known German test magazine. Reports on legal rulings regarding the use of surveillance cameras are printed by the editors more frequently. Two smaller quick tests for the IP cams of the discounters Aldi and Lidl were published online.

This video explains how to set up and configure an IP cam:

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Video Board: TOP 5: Best Outdoor Security Camera 2018