Last updated: August 14, 2021

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Bienvenido a nuestra gran prueba de escáner de código de barras 2021. Aquí presentamos en detalle todos los lectores de códigos de barras que hemos probado. Hemos recopilado información de antecedentes detallada y agregado un resumen de las opiniones de los clientes en la web.

Nos gustaría facilitarle la decisión de compra y ayudarlo a encontrar el mejor escáner de código de barras para usted.

También encontrará respuestas a preguntas frecuentes en nuestra guía. Si está disponible, también ofrecemos interesantes videos de prueba. Además, también encontrará información importante en esta página a la que debe prestar atención si desea comprar un escáner de código de barras.




Resumen

  • Los lectores de códigos de barras le permiten capturar códigos de barras o códigos de barras. Estos códigos de barras se leen a máquina con la ayuda de un lector óptico y luego se pueden procesar electrónicamente.
  • Se hace una distinción básica entre escáneres LED / CCD y escáneres láser. Ambos tipos están disponibles en numerosas versiones.
  • Los escáneres LED son fáciles de usar, pero la distancia de lectura es relativamente corta. Los escáneres láser, por otro lado, pueden capturar códigos de barras de manera efectiva a pesar del movimiento y es posible una mayor distancia de lectura.

El mejor escáner de códigos de barras del Reino Unido: nuestras opciones



Guía: preguntas que debe hacerse antes de comprar un escáner de código de barras

¿Dónde se utilizan los lectores de códigos de barras?

Siempre que un código de barras sea leído y procesado por una máquina, debe ser leído por un escáner. Este es el caso, por ejemplo, de la logística, la asistencia sanitaria, los sistemas de caja registradora y los servicios postales y de paquetería.

En logística, las mercancías se escanean durante la entrada de mercancías, la salida de mercancías, el inventario, la asignación de ubicaciones de almacenamiento, el registro de datos de las existencias en el almacén y la identificación de las mercancías.

¿Sabía que los códigos de barras se utilizaron originalmente para vagones de ferrocarril?

En realidad, los códigos de barras se crearon para identificar los vagones de ferrocarril. De esta forma, las empresas ferroviarias podrían reconocer los vagones individuales y así prevenir y evitar posibles colisiones.

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The health sector, specifically pharmaceuticals, is already so attuned to the use of barcodes that it even uses its own standardised specification. This special code is called a PZN.

Barcode scanners are available at all cash registers, for example in supermarkets, pharmacies, furniture shops, newsagents and petrol stations. Readers are used in almost all processes for registration or identification at postal and parcel services.

The mobile devices are used when the goods to be scanned have to be scanned on the spot. This is the case, for example, when an employee in a warehouse wants to capture at the other end of the premises, but the computer is in a different location.

Usually, after the scanner data transfer, the data is routed to host systems for automatic processing. The wired devices are often used at so-called I-points, such as checkout terminals.

How does data transmission take place?

Once the data has been decoded by a scanner, it can then be transferred to the higher-level system via the various interfaces. The data transmission can be done with a cable or by radio link.

Barcode scanners are used wherever products change hands. Here, for example, in a pharmacy. (Image source: 123rf.com / kadmy)

The decoded data can then be passed on to the higher-level system via various interfaces.

Often, the USB port is used and the data is looped in with a Y-cable via the keyboard connection line of the computer. This is usually done by means of an intermediate plug.

This has the advantage that no software adjustments are necessary, as the computer does not recognise whether the data input is manual or read-in. Only the keyboard layout and the operating system used need to be taken into account.

Today, barcode scanners are usually connected quickly and easily via the plug-and-play USB interface. Data is then transferred with the help of a special cable. Wireless radio scanners are available for full freedom of movement.

The transmission takes place via another external interface of the computer.

In some cases, the readers are an integrated part of a data collection device that transmits the data in a wireless network (WLAN), for example.

Bluetooth is also often used as another wireless data transmission method.

What is a radio scanner?

Radio scanners are a wireless variant of data transmission, which is possible with radio and Bluetooth.

Here, the receiver is connected to the PC or the cash register with a cable. The barcode data is sent from the radio scanner to a receiving station. This transmits the information to the PC or the cash register. These scanners are connected via USB or Y-keyboard cable.

Radio scanners have different ranges depending on the model. These are around 10m in the entry-level class and reach up to 50m in the industrial versions.

Decision: What types of barcode scanners are there and which one is right for you?

The barcode is also called a bar code or barcode. A barcode is an optoelectronically readable font that consists of various wide, parallel bars and gaps.

These bars are read by machine with the help of an optical reader and can then be processed electronically.

A distinction can be made between four different types of barcode readers:

  • Reading pen
  • LED scanner/ CCD scanner
  • Laser scanner
  • Camera scanner

Each of the above-mentioned barcode scanners is particularly suitable for certain areas of activity, which brings with it certain advantages and disadvantages.

Depending on what you want to use the barcode scanner for and what exactly you want to scan, some barcode scanners are better suited than others. In the following, the different types are presented in more detail with their advantages and disadvantages. This way you can find out which scanner is best suited for your project.

ChipTechnikmagazin
There are many good and also free apps for your mobile phone, tablet, computer and the like with which you can read and create barcodes of all kinds.

There are some apps that allow you to quickly check the current prices of certain products by quickly scanning the barcode. Or you can check the ingredients of care products by scanning the code with the appropriate app.

(Source: praxistipps.chip.de)

How does a reading pen work and what are its advantages and disadvantages?

The special advantage of the reading pen is that the purchase costs are very low. So if you don't want to invest a lot of money in a scanner, this one is particularly suitable.

The reading pen is moved over the barcode by hand. A light-sensitive sensor and a light source are located in its optical tip.

Advantages
  • Low initial cost
  • Relatively high robustness
  • Very small unit
Disadvantages
  • Low tolerances in reading speed and reading angle
  • Relatively uncomfortable, slow scanning
  • Practice required

They ensure that the light from the light-emitting diode is reflected by the bars and gaps in the barcode. A decoder receives the light/dark signals and thus deciphers the code.

However, you must have a steady hand to decode the signal without error. If you swipe the code too quickly or press too hard, errors can occur.

How does an LED scanner work and what are its advantages and disadvantages?

If you want to capture the entire barcode at the touch of a button with little effort, the LED scanner is the perfect choice. It is easy to use, but the reading distance is relatively short.

With the LED scanner, which is also often called a CCD scanner, the barcode is illuminated by a light-emitting diode (LED). The sensor has a bar of light-sensitive cells on which the barcode reflects depending on the brightness or darkness.

Advantages
  • Easy to use
  • Fast detection of the barcode
  • Multiple decoding of the code in one reading process increases reading reliability
  • No moving mechanical components
  • Relatively high resolution
Disadvantages
  • Reading distance is relatively short
  • Detection of new, two-dimensional barcodes not possible

A decoder deciphers the bars and gaps in the barcode. This makes it possible to decode the information contained in it.

It should be noted that the distance between the barcode and the scanner is limited, ranging from a few centimetres to about half a metre, depending on the LED strength, optics, size of the barcode and ambient light.

With this barcode reader, it is possible to capture the entire width of the code at once.

LED scanners are among the most popular barcode readers alongside laser scanners. They are particularly convincing because of their ease of use and their scanning quality.

How does a laser scanner scan and what are its advantages and disadvantages?

With laser scanners, barcodes can be captured effectively despite movement. In addition, a high reading distance is possible.

With a laser scanner, one or more laser beams are directed at the code and guided over the barcode at high speed via a oscillating mirror, a mirror wheel or other optical systems.

The strength of the reflecting light depends on how light or dark the bars on the barcode are. This light is detected by the optics and converted into electrical signals by the photodiode and evaluated.

Advantages
  • High reading distance possible
  • Reading also possible under difficult lighting conditions
  • Easy to use even for laypersons
  • High reading speed
Disadvantages
  • Capture of new, two-dimensional barcodes not possible
  • Increased susceptibility to interference due to mechanically moving components

With laser scanners, a barcode can be effectively captured even if the scanner or barcode is moved. This leads to excellent scanning productivity. This allows for great freedom of movement.

In addition, laser scanners allow for longer reading distances. For a longer reading distance application, there is a wide range of gun laser scanners to choose from. Often, built-in scanners are also equipped with laser scanners.

How does a camera scanner work and what are its advantages and disadvantages?

Imagers can capture two-dimensional barcodes as well as one-dimensional ones. Therefore, you can capture even more information in a small area.

Camera scanners are the latest generation of barcode readers and are often referred to as imagers. The barcode is captured by a camera, processed by digital image processing and digitally recorded.

In principle, modern camera scanners function similarly to LED scanners, but have many lines of sensors instead of just one. This makes it possible to arrange the information on a two-dimensional surface and capture it in one step.

Advantages
  • Omni-directional capture of the code
  • Robust and space-saving
  • Decoding of codes with very high information density
Disadvantages
  • Relatively expensive technology
  • Relatively low 1D resolution

Imagers can also be used to capture documents or ID cards thanks to the integrated camera, which extends the functionality.

In addition to 1D barcodes, imagers can also capture 2D barcodes using digital image processing. 2D codes represent a relatively large amount of information on a small surface, which is why smaller files can also be transmitted in this way.

In addition, they can capture barcodes omnidirectionally, which means that products no longer need to be precisely aligned for scanning. Therefore, they are versatile. However, the technology is comparatively expensive.

Buying criteria: You can compare and evaluate barcode scanners based on these factors

In the following, we would like to show you which factors you can use to compare and evaluate barcode scanners. This will make it easier for you to decide whether a product is suitable for you or not.

In summary, these are:

  • Design
  • Scanner type
  • Extras and functions of barcode scanners
  • Buffer memory
  • Processor
  • Scanning
  • USB
  • Connection / cable length
  • Power consumption
  • Instruction manual

In the following paragraphs you can read about the different purchase criteria and how you can classify them.

Design

Design plays a major role when buying a barcode scanner. This includes the colour, the material of the housing and the weight.

Most readers come in black or grey. Some have yellow or white highlights, which make them look more upbeat.

There are bigger differences when it comes to choosing the material of the casing. Most scanners are made of ABS, which is acrylonitrile-butadiene-styrene copolymer. This sounds very complicated, but it is nothing more than a plastic housing.

In addition to ABS, some devices are also made with PVC or GRP, both of which are also plastic materials. The advantage of PVC is that it is lightweight and easy to work with. GRP, on the other hand, has a high impact strength and excellent resistance to corrosion.

When choosing a scanner, you should consider the weight of the device. As just mentioned, the type of housing has an influence here.

Barcode readers made of ABS and PVC are lighter than those made of GRP. So if you are going to be using the scanner for a long time, whether for business or pleasure, you should keep an eye on the weight, otherwise it will become exhausting over time.

Scanner type

As we have already mentioned, there are different types of barcodes. On the one hand, there are the classic barcodes, which are one-dimensional. The QR code, on the other hand, is two-dimensional and bears little resemblance to the classic barcodes.

Barcode scanners are usually only able to read 1D codes, as the 2D code consists of many small black squares in a square or rectangular area.

These codes can no longer be read with a normal barcode scanner, but require special scanners; the information cannot be read from a single line, but the code must be captured as a whole.

The term "imager" is also commonly used in the industry when referring to a 2D device. They have a camera and a decoder. Therefore, all the barcode scanners we show you here can only read 1D codes.

The possibilities for scanning QR codes with a smartphone are constantly increasing. For example, airline tickets can also be transported via QR code in smartphones (Image source: flickr.com / AP)

Extras and functions of barcode scanners

When it comes to the extras you should look for when buying a barcode scanner, the signal tone and whether the device can be switched off play a major role.

The beep indicates that a scan is complete. This can help you work effectively. However, this monotonous sound can also be annoying if used for a long time.

In addition to the beep, it is also important to know whether you can switch off the barcode reader. This is the only way to save electricity. In addition, devices that can be switched off are usually more durable.

However, only you can decide whether these factors play a major role in your purchase decision. Which option is the right one depends on your type.

Buffer storage tank

The choice of buffer storage tank, however, is anything but a matter of type. Here you should let the facts speak for themselves.

Barcode scanners are equipped with a memory if it is wireless. The advantage is that even without a connection to a system or computer, you can work up to a certain number of scans without losing anything.

The mobile scanner can record and transmit the data when a connection to a system is established. This means that the code scanner can also be used for a short period away from the workplace or lent to other people.

Even if the barcode scanner software needs an update, work can continue thanks to the buffer memory. On barcode scanners with a display, you can see directly how full the internal memory is. The following memory variants are standard: 256 kByte working memory (up to 2,600 codes) or 512 kByte working memory (up to 5,000 codes).

Wireless barcode scanners have a memory. This offers the advantage of being able to work up to a certain number of scans without being connected to the terminal.

Processor

In addition to the buffer memory, knowledge of the included processor is also an advantage.

A processor is a programmable arithmetic unit (usually very much reduced in size), i.e. a machine or an electronic circuit that controls other machines or electrical circuits in accordance with commands given and in doing so drives a process, which usually involves data processing.

Most of our barcode scanners are 32 BIT processors, which means that the processors are designed in such a way that 32 bits can be processed simultaneously or during one clock cycle.

Scanning

During the scanning process you should pay attention to the following things:

  • Scan distance
  • Scans per second
  • Reading width
  • Light source

The scan distance, as the name suggests, indicates the distance at which you can still scan with high quality. There are large deviations between the most common readers. Some only read up to a distance of 30 mm, others have a range of up to 600 mm. Depending on what you want to use the device for, you should research this carefully.

The number of scans per second for most laser scanners is around 100. An exception is a model from ALBASCA, which delivers 270 scans per second.

The reading width is the width that the object to be scanned may have so that it can be captured in its entirety.

Here, there is a clear difference between CCD and laser scanners. With the former, a very flat line section of the barcode is captured in its entire width at once. Its width is therefore 82 mm, whereas laser scanners can often only read 30 mm.

The light source is located in the optical tip of each device and reflects the bars and gaps of the barcode depending on the brightness or darkness. Here we only present scanners with LED red light.

USB

If you go by the masses, you should buy a USB scanner, because they are very popular. This is because the connection is considered robust, reliable and extremely secure against tampering.

If the barcode scanner uses Bluetooth to connect to the data collection system, failures and signal interference can occur. However, an annoying cable, which can quickly become a nuisance when working overhead, for example, is eliminated and the radius of action can be considerably increased.

If you want to extend your range with the USB barcode scanner, however, you will need a correspondingly long USB cable.

Connection / cable length

The length of the cable should have less influence on your purchase decision. Especially with a Bluetooth barcode scanner, this factor is of course irrelevant.

If the barcode scanner uses a USB cable to connect to a POS system or computer, you should take a look at the length of the cable to estimate how large the operating range of the code scanner will be.

The scanners we show you here usually have a cable length of about 2 metres. However, you can easily buy a longer USB cable later.

Power consumption

To protect not only the environment but also your wallet, you should always keep an eye on the power consumption of the devices you want to buy.

Barcode scanners have a power consumption of around 110 m.a. when in use. In standby mode, it is just 30-40 m.A.

It is therefore advisable to invest in a reader that has a standby mode.

Operating instructions

In order to be able to operate the scanner at all, an instruction manual is necessary in most cases.

So if you are not familiar with the use of these devices, you should buy a reader that comes with a manual. However, this is usually the case with new devices, regardless of which one you buy. This is also the case with the scanners that we will introduce to you here.

Trivia: Interesting facts about barcode scanners

How long have barcode scanners been around?

In 1949, Norman Joseph Woodland and Bernard Silver conducted their first experiments with barcode reading and applied for a patent, which was granted to them three years later.

The introduction of the barcode revolutionised the product industry on 26 June 1974 and can now be found on almost all packaging of a wide variety of products.

In 1973, the Universal Product Code was introduced in America. About a year later, the first product, a ten-pack of Juicy Fruit from the manufacturer Wrigley, was scanned at a supermarket checkout. Europe introduced its own barcode, the European Article Number, three years later.

Did you know that Wrigley's chewing gum was the first product with a UPC code?

In Ohio, at a Marsh Supermarket in 1974, a product with a barcode was swiped through the checkout scanner for the first time. It was a 10-pack of Wrigley's Juicy Fruit gum and was the first food product to be scanned.

However, the first barcodes often led to incorrect readings of the barcode scanners in practical use, as no suitable printing technology had yet been found for the barcode and the barcodes did not yet have uniform sizes. Today, barcodes are technically very sophisticated and precisely standardised in barcode width and barcode spacing.

What are the different barcodes?

The best-known barcode in Europe is the European Article Number EAN 13, which is a one-dimensional code. This code consists of 13 digits, of which the last digit is used as a check digit.

Global Trade Item Number and EAN codes are mainly used for product identification. However, there are also a number of other codes that can be used for different purposes.

Even though there is a uniform EAN code in Europe, there are still different subtypes of barcodes. These were introduced to separate certain product groups from others.

What is a QR code and how does it differ from the barcode?

One of the latest innovations in the history of barcodes is the QR code.

A QR code is a two-dimensional code that was developed by the Japanese company Denso Wave in 1994. It consists of a square matrix of black and white squares that represent the encoded data in binary form.

Barcode scanners are classic barcodes and one-dimensional. The QR code, on the other hand, is two-dimensional and bears little resemblance to classic barcodes. It consists of many small black squares in a square or rectangular area.

The information cannot be read from a single line, but the code must be captured as a whole. These codes can no longer be read with a normal barcode scanner, but require special scanners. The term "imager" is also commonly used in the industry for 2D devices. They have a camera and a decoder.

A QR code is a two-dimensional code consisting of many small black squares. These codes cannot be read by normal barcode scanners.

In the following table, the two primary code technologies are examined in more detail. In the process, specific characteristics are discussed in more detail, from which the necessary reading technology is derived:

Barcode technology Characteristics Necessary reading technology
Barcode Straight, vertical arrangement Commercially available scanner
2D barcode Matrix-like, stacked arrangement Camera scanner

How does a mobile phone scanner work and what are its advantages and disadvantages?

Mobile phone scanners are a new generation of barcode reading.

Mobile phone software makes it possible to capture 1- or 2-dimensional barcodes with the smartphone's digital camera and immediately display the code information to the user in decoded form.

In addition to the mobile phone camera, an image processing application is required on the mobile phone that is responsible for evaluating the camera images.

Is there a barcode scanner for my PC, smartphone or tablet?

Existen varias aplicaciones para el teléfono móvil o tableta que permiten el escaneo de códigos de barras.

En su computadora portátil o PC, puede usar la cámara web para descifrar códigos de barras. También existe la opción de escanear códigos de barras en Excel.

Fuente de la foto: 123RF.com / © kritchanut, 89965925

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