How to choose a barcode reader?

Table of contents:

1. Barcode reader - what is it and how does it work?

2. Barcode reader - what is it used for?

3. Selection of a barcode scanner - what to pay attention to?

1. Determine the needs of your enterprise.
2. Code reading technology.
3. Pay attention to the reading angle and distance.
4. What kind of codes does it read? Types of barcodes.
5. The method of transferring data from the barcode reader.
6. Frequency of scanning - how often will it be used?
7. Construction of the scanner.
8. Operating conditions of the scanner, and its housing.
9. The location of the scanning button.
10. Accessories of the scanner - does it have a stand?
11. The presence of a display.
12. Maximum distance from the station.
13. The length of the cable.
14. Battery life.
15. The color of the scanner.
16. How much does a barcode scanner cost? Price.
17. Service contracts and warranty.

4 Summary.

Barcode reader - what is it and how does it work?

A barcode reader, otherwise known as a barcode scanner, is a device used to read barcodes and transfer the data contained in them to a barcode terminal (data collector)/tablet/laptop or any other base equipment. Most often we encounter scanning of codes placed on products or logistics labels. Barcode scanners are designed to speed up the process of reading encoded data, while generating time and money savings for your business.

Barcode reader - how does it work?

When the scanner's beam is aimed at the barcode and the scanning button is pressed, the laser light travels over the barcode and is absorbed (by the color black) or reflected (by the color white). The scanner has a photodetector that processes the light reflected to the laser and converts it into electrical pulses, which are actually the information contained in the code. The photodetector sends the pulses to the detector, responsible for translating them into characters, numbers and letters. This process allows us to read the barcode and all the information it contains on a device equipped with a computer system.

Barcode scanner and data collector - the difference.

It is worth mentioning that a data collector (mobile computer) and a barcode terminal are two completely different devices - a data collector (barcode terminal) resembles a smartphone in appearance and is equipped with an operating system (e.g. Android), which means that using it resembles operating a small portable computer. On the other hand, a barcode reader is a scanner that reads data from a barcode and then sends it to a computer, tablet or data collector, for example.

Barcode reader - types.

The division of scanners depends on several criteria such as the type of connection, the purpose, the method of reading the code and the method of holding the scanner. Based on the type of connection, we can distinguish wireless scanners, otherwise known as mobile scanners, which provide comfort of movement in the warehouse, and wired scanners, which are sure not to get lost among the many pieces of equipment on the production floor.

Taking into account the method of reading the code, we distinguish laser scanners (linear imager), which read codes using a laser (single or multi-line), diode scanners, which use LEDs to read the code, and area imager, which are vision scanners that record the image field and, based on it, decode the bar code.

Considering the purpose, industrial, semi-industrial and office readers are available on the market. We can find industrial readers in a warehouse or on the production floor, semi-industrial readers will work well for companies opting for a decent, but at the same time more affordable solution, and office readers, used in pharmacies, offices, reception desks, libraries or offices.

The last division of barcode scanners is based on the method of holding the scanner. Here we distinguish between handheld, handheld and ring scanners. A handheld scanner is a classic scanner that resembles a gun and is used to hold it in the hand - it is available in both wired (connectivity to a computer via a USB cable) and wireless (connectivity via Bluetooth, for example) versions. The wrist reader is usually located on the back of the hand, while the ring scanner, as the name suggests, is worn on the finger, just like a ring - thanks to its small size, it allows scanning codes while leaving the operator's hands free. On the market you can also find counter scanners, built into cash registers, such as those in supermarkets or drugstores, which do not require the use of a scanning button and holding in the hand.

Which type of scanner do you think best suits your company's needs? A wireless industrial scanner with area imager reading technology and a pistol button, or a standard wired office scanner that uses a laser scanning method? In our store you will find all types of scanners and you are sure to find one that is perfect for you.

1. Barcode reader - what is it used for?

As you already know, a barcode reader is used to read the codes found on various products. Currently, barcodes are present everywhere, so their reader is indispensable in many industries. At the same time, it is responsible for increasing productivity, efficiency and savings in your business. The scanner works well in sectors such as industry, retail, logistics, warehouse, wholesale, tourism, medical sector, or manufacturing. A barcode reader for inventory will be helpful in any company where counting of assortment is carried out - it makes the process much faster and more pleasant. It is also integral to the efficient determination of price and product information. We usually associate scanners with industry, trade or logistics, but we can meet them not only on the production halls or in the store. For example, barcode readers for libraries are often responsible for speeding up the process of borrowing and returning books, as well as for reading barcodes placed on readers' cards. We may also see them on movie tickets, in hotels, swimming pools, offices, or medical facilities such as a pharmacy or the reception desk at a clinic.

Each of these places will have different requirements for a barcode scanner - a different scanner will be used in a library, and another on a large production floor. Therefore, before buying it, it is very important to know all the needs of your company, so that the process of reading information will be the most convenient for you.

2. How to choose a barcode scanner?

Nowadays, we can find many types of barcode scanners on the market, such as warehouse scanner, EAN code scanner, wireless scanner and many others. We will need a different device in a store or office, and another in a warehouse. So how to choose the best barcode scanner? What parameters should you pay attention to in order to choose a scanner tailored to the needs of your business?

3. choosing a barcode scanner - what to look for?

3.1 Determine the needs of your enterprise.

Nowadays you can encounter a huge number of barcode scanners on the market. Therefore, you should first reduce the scope of your search by determining the specific needs of your enterprise, and determine its exact purpose. Only later should you determine your budget - this is important, because an inexpensive office scanner may not work well on your production floor, and an industrial scanner may not be very handy for the employees of a small store or reception area. To start, it's worth answering some important questions: What industry is your enterprise in? What size is it? How many people will use the reader and how often? Where will you place it and where will it be used? What types of barcodes will be scanned? Do you have a device in your enterprise to which you can connect the barcode reader? Help outline the answers to these and other questions below.

3.2 Code Reading Technology.

Once you've determined your company's needs, it's time to choose a code reading technology that fits your business. What exactly will be the right technology for you? Taking into account the way the code is read, we distinguish between laser scanners (linear imager), CCD diode scanners and area imager, which are vision scanners that capture the image field and decode the barcode based on it.

Laser scanners (linear imager) - are responsible for reading the bar code using a laser beam and are the most commonly purchased. They work fast, have good reading quality, allow to read wider barcodes and can scan at different angles. Unlike diode scanners, they are able to read codes from a greater distance, up to several meters. They are not the best at reading damaged codes and those placed on monitors. Due to their design, they can also be prone to damage. Their biggest plus, however, remains the price - it is certainly the cheapest solution. They will find use where we have to deal with EAN 13 codes, that is, in retail, such as grocery stores and supermarkets.

barcode. In addition, they work a little slower than laser scanners.

Area imager scanners - otherwise known as vision scanners, capture the image field (barcode) in 2D format and then decode it, allowing us to read the information contained in it. A big plus is that they can read virtually any barcode, both one-dimensional (1D) and two-dimensional (2D), including QR code. They read codes from any surface, from any angle, even the most damaged ones. Where will an area imager scanner prove its worth? In warehouses, production halls, cold storage and outdoor work.

It is very important to choose the right type of scanner - remember that if you need to read a large number of codes, in a manufacturing or warehouse environment, an industrial scanner that can handle damaged barcodes and is drop-proof and has a reinforced housing that allows it to work in harsh conditions will work best.

3.3 Pay attention to the reading angle and distance.

An important consideration when choosing a scanner can be the distance from which the device will read codes. Why? Imagine a large warehouse, with many high racks, on which there are goods marked with barcode labels. In order to quickly and efficiently read barcodes from such a distance, without the use of lifts, we need a scanner with a long range, up to several meters. Determine from what distance you will need to read the code: is it 1.2m, 1.6m, 1.8m, or maybe more?

A factor that affects the use of the scanner is also the reading angle - some of them read codes only at a 90-degree angle, which means that the product with the code must be placed right under the scanner and positioned perpendicularly, so that it is readable to it. This can be inconvenient, especially when you want to read a code that is on a high shelf - in this case, you should choose a device that will decipher the characters at any angle.

3.4 What kind of codes does it read? Types of barcodes.

It is worth noting which codes the reader can read. What does this mean? Currently, there are about 250 bar codes, so it is important that you know which codes you will need to decipher. The standard division of barcodes is one-dimensional 1D (linear) codes, two-dimensional 2D (stacked or matrix) codes, composite codes, three-dimensional codes, and so on. The most popular bar codes are EAN 13, EAN 8, QR Code, Code 128 and Code 39. Among the popular one-dimensional codes we can distinguish: UPC codes and EAN codes, and among the two-dimensional ones: QR, Data Matrix, or Aztec code. So we encourage you to verify exactly which bar codes it supports before buying a reader. For a detailed description of barcode types and what they are used for, see our barcode guide.

3.5 How to transfer data from a barcode reader.

As you already know, barcode readers are used not only to scan information, but also to read it. However, in order to receive data from the device, we need a computer or other base equipment - it can be a small industrial mobile computer, a forklift tablet, a laptop, or a computer. Currently, there are 3 interfaces, or ways to transfer data to the base equipment, on the market. There are USB, RS232, PS2 and Bluetooth interfaces. What exactly does this mean? That is, how to mount a barcode reader.

USB and PS2 interface - these are the most popular ways to transfer information from the scanner to the computer. They involve connecting the reader to the computer using a USB connector or PS2 communication port. The reader must then be installed on the computer as an HID (Human Interface Device), so that the information can then go to the appropriate place, such as a selected field in Excel. This method does not require the installation of any additional drivers or applications.

RS232 interface, or UART-is a way of data transfer, which is based on the cooperation of the scanner with a special application. The scanner must be installed as a COM port (Communication Port serial interface), and the data can be accessed only by the attached program.

Bluetooth - for mobile scanners that do not require a wired connection, Bluetooth is used, with which you connect to the base device. However, pay attention to whether your reading device is equipped with this function.

3.6 Scanning frequency - how often will it be used?

Before choosing a scanner, ask yourself: how often will you use it? In an office or library there is no need to use the device very often, so in this case go for a standard, more economical model. However, if you want to buy a scanner for a warehouse, then equip yourself with an industrial model, betting on fast and frequent scanning.

3.7 Scanner construction.

We can divide the construction of scanners into single-module and multi-module. Single-module construction means that the scanner consists of single-module boards, that is, each part is closely interconnected. If one part of the device fails, we are therefore unable to repair it, making it necessary to replace the entire equipment. In the case of scanners consisting of multi-module boards, we have the option of replacing individual parts, without having to buy a new device.

3.8 Operating conditions of the scanner, and its housing.

Determining the conditions in which the scanner will work is very important. In premises such as an office, store or library, a scanner with a low-demanding casing will work well - due to the fact that it is not as exposed to falls as readers in sorting rooms, production halls or warehouses. In such places, it is worth considering data such as:

Sealing standard - indicates the degree of protection of the reader against external factors, such as dust, water, or dangerous tools such as wire. The most common sealing classes are IP54, IP44, IP65 and IP67. The first digit after the letter "P" indicates protection from indoor elements (dust, dangerous tools), and the second digit indicates the degree of waterproofness.

Temperature - operating temperature also has a significant impact. If you plan to use the scanner in a cold room or outdoors, choose equipment that can withstand extreme temperatures, such as -20 °C to 50 °C.

Humidity - if you are working outdoors or in a room with a lot of steam, consider the degree of humidity the device will be able to withstand. This scale usually ranges from 5 to 95%.

Material of construction - plastic casing is usually present in office readers, and rubber and/or metal casing in industrial models, due to the greater likelihood of falling on concrete.

3.9 Location of the scan button.

If you frequently scan barcodes, consider the location of the scan button. It can be located on top or on the side of the scanner. Pistol buttons, which are the most popular and convenient option, come to the fore. In many scanners, mainly industrial ones, several scanning buttons are available, such as a pistol button and a side button.

3.10. Scanner accessories - does it have a stand?

Pay attention to whether the price of the equipment includes accessories, necessary for comfortable use of the equipment, such as, for example, the interface cable, charging station, battery, power supply or stand, on which the scanner should be put down. Thanks to the stand, we gain the certainty that the scanner will always be in the same place after finishing work. It is often the case that all accessories must be ordered separately, and in the quoted price you get the scanner itself, so it is worth reading the description.

3.11 Presence of a display.

Some readers have a display, which should not necessarily be an important consideration when choosing one. Barcode readers with a display have a small screen, most often measuring about 2 inches, and we can see on it the battery level, time, date, the name of the goods and their price. This is a very abbreviated version of the relevant data encrypted in the barcode.

3.12 Maximum distance from the station.

The wireless barcode reader has a certain distance from the docking station at which it can operate. This means that it is fit to work mostly at a distance of about a few hundred meters from the station in open areas. Therefore, before buying, make sure that the working range given in the description will be sufficient for you.

3.13 Cable length.

On the other hand, wired versions of readers have different lengths of cable, allowing its free use. The range of cable lengths varies from about 100 cm, up to several meters, so if you need convenience in maneuvering the device, choose a variant with a longer length.

3.14 Battery life.

Be sure to consider the battery life - after all, it so happens that the scanner is used for several/several hours without a break. Check how long the battery would last if adjusted for the frequency of scanning in your warehouse or office. If scanning is infrequent, the battery will certainly last longer, and will wear out faster if used frequently.

3.15 Scanner color.

The color of the scanner is important not only for visual reasons, but also for location. Black is the most commonly purchased color, but it does not make it easy to locate a scanner, especially a mobile one, in a large, filled warehouse. Instead, a case with strong colors is more visible and easier to find. So it's worth getting a white scanner or one with colored components that are visible from a distance.

3.16. How much does a barcode scanner cost? Price.

The prices of barcode scanners range from a few hundred zlotys to several thousand - so it is important to determine your needs for this device. Office readers can cost from 200 to 900 zlotys, depending on their specifications and functions, and industrial versions cost about several thousand per unit (not including accessories). What affects the price of barcode readers? Such elements are taken into account as, for example, the range and angle of scanning, the ability to read difficult and damaged codes and codes of non-standard size (very small or very large), battery life, scanning speed, as well as resistance to drops and external factors.

3.17 Service contracts and warranty.

What is a service contract? It is a type of contract, between the manufacturer, the vendor and the consumer, allowing support and repair in case of equipment failure. It is a useful safeguard that will allow your scanner to operate impeccably. As partners of reliable manufacturers Zebra, Datalogic and Honeywell, we provide several versions of service contracts including, for example, telephone support, quick hardware repair or software support. You can learn more about this here: https://www.hdf.com.pl/serwis/kontrakty-serwisowe-producentow.

Also pay attention to the length of the warranty period, during which you will receive repairs for errors related to malfunctions of the equipment due to the manufacturer's fault. Warranties can last from 1 year to as long as 5 years, so be sure to check what kind of warranty you get and whether you have the option to extend it before buying a scanner.

4 Summary.

In conclusion, the most important thing in choosing a barcode scanner is to determine the needs of your business and match it to the type of business you do. We hope you have learned what to look for when selecting a barcode scanner that will meet all your requirements and that you have found the best barcode scanner. After all, a well-chosen scanner is essential in automating, speeding up processes and generating savings in companies around the world.