Modern wireless mini cameras for covert video surveillance are developed using innovative technologies, which allows you to create a device that is comparable in size to a small button. However, such a small size does not affect the functionality of the camera in any way. The devices are widely used in business and in everyday life. All information about mini cameras is presented in this article.
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What are wireless mini surveillance cameras?
A mini camera is a small device for video recording of events, which is disguised as household appliances and interior items. These advanced cameras have become a worthy replacement for large hidden devices. The mini CCTV camera fits easily in the palm of your hand, which makes it easy to carry it comfortably and invisibly.
China is considered the main manufacturer of this equipment. New, improved models are released from year to year, meeting the growing demand of consumers.
Scopes of small cameras for covert video surveillance:
- covert surveillance of subordinates at workplaces without creating tension in the team and reducing its efficiency;
- monitoring the staff in the house makes it possible to see everything that the servants are doing in the absence of the owners. By installing hidden video surveillance in the apartment, you can insure yourself against the presence of an unscrupulous nanny or housekeeper;
- recording important confidential meetings, which makes it possible to record the course of negotiations and details of the conversation;
- recording lectures, seminars, press conferences in order to subsequently be able to familiarize themselves with important material in detail;
- recording events during a covert journalistic investigation;
- using the camera as a car DVR will be a real salvation in conflict situations on the road and when communicating with representatives of the traffic police.
Features and benefits of mini cameras for covert video surveillance
The main feature of mini cameras is the ability to use them discreetly. Due to their small size, they can be camouflaged as a button, cufflink, brooch or other item of clothing and interior design. Thus, it is easy to use the main advantage of the device and conduct covert surveillance of important events and people.
Varieties of video cameras for covert video surveillance
Wired mini cameras for covert video surveillance are convenient to use as continuous surveillance indoors. The cameras are powered from a 5-12 V source. The video signal is transmitted from the device via a cable line. The use of wired covert video surveillance systems is convenient because it provides a high-quality and stable video signal. However, the presence of wires can give away the surveillance system, so they also need to be masked.
Wireless mini cameras for video surveillance are more difficult to detect than wired ones. Especially if the device simulates a household item. They can work over WiFi or 3G network. The first type of device has a high data transfer rate. However, their signal reception range is not high and reaches no more than 50 m.
Useful advice! You can increase the communication range of a hidden WiFi CCTV camera up to 8 km by installing the TRENDnet TEW-OA14DK antenna for the receiver.
New models of wireless mini video surveillance cameras can work via 3G in places where there is adequate coverage. You can watch the events taking place online from a mobile device, PC or laptop from anywhere in the world.
Self-contained mini video surveillance cameras with recording on a memory card work from a rechargeable battery or a replaceable battery. There is no possibility of online broadcasting of the image. To see the picture, you need to remove the memory card and insert it into a PC or laptop. The disadvantage of the device is the limited amount of memory. To ensure uninterrupted operation and complete relevance of the recorded data, it is necessary to regularly free up space on the card.
The use of wireless mini-cameras for video surveillance with a motion sensor makes it possible to use up the resource of the memory card expediently due to the operation of the device in economical mode.
Cameras can be color or black and white. Color cameras are better for daytime shooting, while black and white are better for nighttime. For round-the-clock shooting, it is better to buy a hidden wireless mini video surveillance camera of the combined type.
Built-in models can be easily passed off as a regular piece of clothing or interior design. It can be a pen, lighter, button, or brooch.
Analog or digital miniature covert video surveillance camera
The operation of analog devices and signal transmission is carried out using terrestrial television. This type of camera is not very popular among consumers, as the resulting image is subject to interference and distortion.
Digital cameras are capable of transmitting high-quality images, which are practically unaffected by interference. However, they can reduce the data transfer rate. Today, the most popular type of digital device is a mini Wi-Fi camera for covert video surveillance. She can work indoors, outdoors at any time of the day and during the year. Keep in mind, however, that the signal transmission speed is reduced if there are walls and partitions between the camera and the DVR.
If it is not possible to use Wi-Fi models, then it is advisable to buy wireless mini cameras for GSM covert video surveillance.They are usually installed in country houses, dachas, construction sites, where there is a constant mobile signal. The picture is transmitted at a speed of 1 frame / sec.
Mini digital cameras can be black and white or color. The first type provides a clearer picture and increased sensitivity. Because less memory is required for black and white recording, the subject will take longer to shoot. The presence of color does not affect the cost of the device in any way. It all depends on the personal preference of the buyer. For hidden video surveillance in an apartment, it is better to choose wireless mini-cameras with a black and white image.
Spy mini cameras
Today, the newfangled so-called "spy" cameras are very popular. Their dimensions are so tiny that the devices can be hidden in the frame of glasses, in a pen, a brooch, etc. However, despite their small weight and small dimensions, the video camera has high technical characteristics. Thanks to this, the devices guarantee good image quality even in minimal lighting conditions.
Spy devices can be used in important negotiations in neutral territory, in carrying out journalistic investigations and similar purposes.
Devices have powerful options:
- video resolution from 1280x960 pixels;
- lens matrix size starts from 4 mm;
- color image;
- video recording at a rate of 30 frames / sec .;
- sound recording from 128 kbps;
- the ability to recognize a person's voice;
- time of continuous operation of the device 2 hours;
- the size of the built-in memory - from 1 GB and above.
This type of device has a high cost, which can amount to several tens of thousands of rubles. Therefore, it is not advisable to use them for home video surveillance.
The main criteria for choosing mini cameras
Before you buy a wireless mini-camera for video surveillance, you should carefully consider its characteristics and familiarize yourself with the types of devices in order to choose the right option.
For a high-quality image, the frame rate should be at least 25 per second. Mini cameras with fps 30 are ideal.
The fixing of the device depends on the specific model. For example, a frameless camera is hidden in an interior item, a pen-shaped camera can have a special stand, and a button-type camera is attached to clothes.
Before you buy a wireless hidden WiFi security camera for your home, you should pay attention to its resolution, viewing angle, sensitivity, lens, playback range and image clarity.
The higher the resolution, the better the image quality. The sensitivity should be as high as possible in order to be able to receive a high-quality image from the camera with minimal illumination of the object.
The size of the viewing angle is selected based on the operating conditions of the hidden camera. To shoot behind an object in a small residential area, it is enough to buy hidden video surveillance cameras for an apartment with a viewing angle of 60-90º. If you need to capture the maximum space of a large area, it is advisable to install mini cameras with a wide-angle lens and a viewing angle of 120-185º.
For outdoor surveillance, you should choose devices with infrared illumination and a motion sensor that will work at night and react to moving objects.
Cameras with recording on a memory card are selected according to the size of the card, which does not exceed 64 GB. The time of continuously recording information depends on the resolution of the camera.Devices with a resolution of 640x480 pixels will provide recording for 50 hours, and cameras with 1280x720 pixels will record information for 20 hours of continuous operation of the device.
Almost all models of wireless mini cameras for covert video surveillance, the price of which is determined by the technical characteristics of the devices, are equipped with a microphone. This makes it possible to record a conversation even in a place that is not within the range of the camera. The range of the microphone can be more than 10 m.
Related article:
Wireless security cameras: a guarantee of the security of private property
Varieties of devices. The principle of operation and the scope of the main types of video surveillance systems.
When using wireless cameras, remember that the transmitter operates at a microwave frequency. This means that for a normal signal between the camera and the receiver, an unobstructed distance of no more than 50 m must be ensured. A reinforced concrete wall reduces this distance by 30-35%.
An important criterion is the type of power source. For self-contained, which are often installed in an apartment, mini cameras for covert video surveillance, you should know the period of continuous operation without charging the battery or replacing the battery.
Installing covert video surveillance
Installation of monitoring devices can be temporary or stationary, which determines the features of the installation. However, despite this, you should create a good view of the device and make the correct focus setting.
You should also decide on the location of the camera to provide a good overview for observing the subject. A hidden video surveillance camera for a home, located on the wall, should have a viewing angle of 70-75º. This value is appropriate for a standard room. The larger the room, the larger the angle value.
For covert surveillance of the office, it is better to place a micro video camera in the corner, in its uppermost place, which will maximize the coverage of the area of the room.
For all models of wireless mini cctv cameras, it is not possible to adjust the camera position and change the direction of the lens. Mounting brackets are not included with the device. To install cameras, you need to purchase them separately.
Useful advice! To quickly install a mini-camera without unnecessary hassle, you should use a special removable platform that allows you to adjust the angle of the camera.
Outdoor cameras should be placed around the perimeter of the area so that the viewing angles of neighboring devices overlap in a small area. It is most advisable for the street to use hidden video surveillance mini-cameras with a motion sensor, which should be installed on the walls of the house under a canopy.
The organization of covert video surveillance in the apartment does not imply the implementation of complex actions. The main thing is to clearly follow the instructions that came with the device.
First, you need to determine the observation area and sketch the layout of the control points. It is important that the maximum range of the camera is ensured. The viewing angle of the device must include windows and doors. The advantage of small cameras is the ability to camouflage them in any convenient location. The ideal option is considered when near the installation site of the camera there is a possibility of connecting it to a 220 V power source.
The camera connects to an 8V power adapter that plugs into a wall outlet. To receive a signal from one camera, a receiver is usually used, and from several devices, a video recorder is used.Both are connected to a power source using a 12V adapter. Using an audio-video cable, the wires of which are inserted into the corresponding connectors, the receiver or DVR is connected to the monitor.
Popular models and prices of mini cameras for covert video surveillance
Speaking about how much a wireless mini CCTV camera costs, we can safely say that this is an inexpensive pleasure, if you do not mean professional equipment, prices for which start from several thousand dollars.
The simplest mini camera can only cost you a couple of thousand rubles. If you choose an improved model with an extended range of technical characteristics, then the cost of the device will vary between 6-10 thousand rubles.
The KRS-400 model is a hidden IP video surveillance camera, the price of which is 1700 rubles. This high-end device has a high sensitivity and good resolution, which allows you to get high quality video in minimal light.
The TBC-A13721R camera is used for outdoor video surveillance. The device is equipped with IR illumination, night mode and motion sensor. Matrix resolution 700 TVL, sensitivity 0.001 lux. You can buy a hidden surveillance camera for 2000 rubles.
The Cube 1 hidden WiFi home security camera allows you to get a color image with sound, which can be viewed online on a laptop or mobile phone anywhere in the world. The signal transmission range is 100 m. The camera's viewing angle is 92 °. The camera has a built-in rechargeable battery, thanks to which you can take continuous shooting for 1 hour. The price of the device is 2200 rubles.
The 102DBPAL wired bullet camera is an analog device with a high-quality lens and a color matrix. Allows you to get high quality video thanks to good resolution. You can buy a hidden mini video camera for video surveillance for 1800 rubles.
Ambertek RS-101 mini color camera with recording on a memory card up to 64 GB has a resolution of 640x480 pixels, a 2 Mp matrix, which ensures high-quality indoor video recording. The price of the device is 2200 rubles.
Ambertek MD-98 is a color wireless mini camera for covert video surveillance, the price of which is about 6500 rubles, has a resolution of 1280x720 pixels, a built-in memory card of 32 GB, a viewing angle of 170 °. The device is equipped with a night light and a motion sensor.
Legality of using covert surveillance
Everyone knows that any covert video surveillance is prohibited by the current legislation of the Russian Federation. This is primarily reflected in Art. 23 of the Constitution of the Russian Federation, which says about the complete inviolability of personal life. But in Art. 20.23 and 20.24 of the Code of Administrative Violations clearly states that in case of unauthorized video surveillance and wiretapping, a fine is imposed on the persons involved in these acts, and all equipment is confiscated.
In places where video surveillance is installed, there should be a corresponding sign that notifies everyone who entered the protected area. If cameras are installed in offices or production facilities, the employer must conclude an agreement with employees on the collection of personal data with their further processing and possible use.
What, then, is the secrecy of surveillance, if it is necessary to notify about it? Here you should know the main thing that all the video footage cannot be advertised, used in court or other executive body.Anyone who conducted covert video surveillance, thereby violating the law, falls under criminal responsibility.
However, the footage does not have to be disseminated. For example, hidden filming in the apartment where the nanny works will clearly show how she behaves towards the child in the absence of the parents. An entrepreneur who has installed video surveillance of staff will be able to find out that he is being deceived. Thanks to this information, you can create the right position both in the family and in the business.
The use of mini cameras for covert video surveillance is rapidly gaining popularity. The information obtained using covert video surveillance will help to pay attention to negligent and unfriendly employees and service personnel in time, and take action to solve the problem.