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What is RFID and how does it work? What is RFID used for?

Updated: Jul 2, 2022

Around the world, so many domesticated animals disappear each year, and it is a growing concern for pet owners. In the United States alone, over three thousand pets have gone missing every year.

In another case, a warehouse has hundreds of boxes, pallets, and products that must all be tracked. It takes a lot of trained personnel and time to track all of the inventory in the warehouse and distribute it to the retailers, and then to the consumer. How are you going to make the task easier while also saving time and money?

Tag your products and collect statistics about them! The collected data will provide practical insight into your stock, whether for forecasting or locating.

Here, will radio frequency identification technology (RFID) make a difference? What are the benefits of RFID? In this article, we will examine how technology can be used to help keep animals safe, as well as identify and track objects in various industries.

What Is Radio Frequency Identification (RFID)?

As the name suggests, radio frequency identification, or RFID, is a technology-based on radio waves for identifying objects or animals. It is used in a variety of applications, such as in passports, in the auto industry, and in retail and animal identification. RFID technology is often used in combination with other technologies, such as barcodes and other forms of identification.

How does RFID work?

RFID uses radio waves to send data from a tag to a reader, and it consists of a microchip and an antenna. These tags are attached to items of interest and contain a unique identifying number that is automatically activated when it is scanned. A scanner scans information and delivers it to a reader, who then transmits it to a computer or the Internet.

RFID Applications

RFID technology is used in various industries such as inventory management, access control, asset tracking, personnel and animal tracking, identification badging, supply chain management etc.

The microchipping of pets, also known as pet chips, is one of the most popular uses of RFID technology. These microchips carry information about the pet, such as their name, medical records, and contact information. When a pet turns up missing and is given to a shelter or rescue, the worker scans the microchip, and he will be able to contact the pet's owners.

RFID tags are used to store serial numbers, track inventory, and provide electronic security. It is used to track everything from cars and trucks to larger items, such as pallets and shipping containers. There are several different types of RFID tags, and each is designed for a different purpose.

Types of RFID systems

There are two types of RFID systems: passive RFID and active RFID. As active RFID tags have their own power, they broadcast their own signal with the information they contain. Batteries are commonly used as a power source. Active RFID systems typically operate at UHF frequencies and have a reading range of over 100 metres. They are often used to handle very large objects in large spaces.

What are passive RFIDs and their applications?

Passive RFID tags do not broadcast signals. They passively respond to an incoming signal and reflect it back. Passive RFID tags are powered by the signal emitted by a nearby RFID reader. Passive tags are typically read-only and cannot be rewritten.

Passive RFID is suitable for a wide range of applications, such as security, tracking, inventory, and logistics. It is commonly employed in applications where high accuracy and speed are required, such as the tracking of assets or the automatic identification of products. It is used in access control systems, in which an individual’s access to a particular area or facility can be monitored. Tracking of animals to prevent them from straying too far from their owners is another application.

Frequencies of RFID tags

RFID uses three main types of frequencies. Low frequency, high frequency, and ultra-high frequency. Each type has its own advantages and disadvantages and is best suited for certain applications.

Low frequency (LF) RFID

Frequencies in the LF band range from 30 kHz to 300 kHz. Most LF RFID systems operate at 125 kHz, although some operate at 134 kHz. LF band is widely used for low-power applications, especially those with a short-range. For example, in warehouse management, a small, lightweight tag suffices to track inventory.

High frequency (HF) RFID

HF frequencies range from 3 to 30 MHz. With a read range between 10 cm and 1 m, most HF RFID systems operate at 13.56 MHz. HF systems experience moderate sensitivity to interference. Ticketing, payment, and data transfer applications are some areas where HF RFID is used for. It is also used for the identification of livestock and animals, the identification of pets, and plants.

Ultra-high frequency (UHF) RFID

Ultra-High Frequency (UHF) bands range from 300 MHz to 1 GHz. Typically, UHF RFID tags and readers operate between 433 MHz and 860 MHz. UHF tags are easier and less expensive to manufacture than LF and HF tags and have a far wider scan range. For applications where many items need to be read at the same time, such as crates of products flowing through a warehouse entrance or racecars crossing a track, UHF RFID tags are a good fit.


As you can see from the list above, RFID is used in many ways. It can track the movement of goods, people, vehicles, and animals. Using it, various industries can improve their efficiencies, such as logistics, manufacturing, and supply chain.

Regami's expert team is well-versed in RFID. We will find the best tags for your business and give continuous assistance for all of your RFID requirements. We provide a comprehensive and sophisticated set of RFID solutions to enhance the consumer experience in retail establishments, track and trace products in warehouses, libraries, hospitals, and so on.

No two RFID systems are the same since they are adaptable and flexible to satisfy the individual needs of various sectors, environments, and use cases. We have an assessment process in place to see if RFID is the perfect solution for your needs.

Do you want to know if RFID is the ideal technology for your tracking project? Please contact us right away.



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