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Keyfobs & Readers


RFID Experten für Transponder mit 20 Jahre Erfahrung

More than 20 years of experience

RFID Karten, Armbänder oder Keyfobs kaufen

More than 100 million transponders sold

Express Service & Schnelle Lieferung

Short delivery times & multilingual service

The right RFID solution for any application

RFID tags are often used for access control, time & attendance tracking, contactless payment and ticketing. iDTRONIC integrates RFID technology into cards, keyfobs, wristbands or tickets & labels. Typical applications can be found in gyms, libraries, universities, amusement parks, hotels, wellness areas, electric mobility or at events.


RFID Lösungen für Fitnessstudios

Gyms | Sports center | Indoor sports


RFID Lösungen für Bibliotheken / Universitäten

Libraries | Universities | Schools

Access control

RFID Läsungen für die Zutrittskontrolle in Unternehmen

Companies | Authorities | Ministries


RFID Lösungen für Wellness-Center und Spas

Wellness Center | Saunas | Spa


RFID Lösungen für Hotels

Hotels | Resorts

Leisure facilities

RFID Lösungen für Skilifte und Freizeitparks

Ski resorts | Theme parks


RFID Lösungen für Events und Veranstaltungen

Sporting events | Festivals | Fairs

EV Mobility

RFID Lösungen für die Elektromobilität

EV-Charging | E-Payment | Identification


RFID Lösungen für die Logistik

IoT | Industry 4.0

Order your RFID tags in our shop

RFID Karten kaufen

RFID Cards

RFID Armbänder aus Silikon für Fitnessstudios

RFID Wristbands

RFID key fobs for access control and time tracking

RFID Key Fobs

Auswahl an RFID Tags und Labels

RFID Tags & Labels

RFID Reader for Access Control

RFID Reader

Auswahl an RFID Kartendrucker

Card Printer

What RFID chip technologies are available?2021-03-15T13:22:04+00:00

Low Frequency

  • Hitag 1  [LF | 125 kHz | 256 Byte] 
  • Hitag 2  [LF | 125 kHz | 32 Byte] 
  • EM4200  [LF | 125 kHz | 8 Byte, read-only]
  • Hitag S [LF | 125 kHz | 32/256 Byte]
  • Atmel Temic 5567 [LF | 125 kHz | 28 Byte]

High Frequency

  • MIFARE Classic EV1 – 1k / 4k  [HF | 13,56 MHz | 1024/4096 Byte] 
  • MIFARE DESFire EV1 / EV2 – 2K / 4K / 8K  [HF | 13,56 MHz | 2048/4096/8192 Byte] 
  • Mifare Ultralight / C [HF | 13,56 MHz]
  • LEGIC MIM 256 [HF | 13,56 MHz | 256 Byte]
  • LEGIC advant [HF | 13,56 MHz | 256 Byte]
  • I-Code SLI [HF | 13,56 MHz | 128 Byte]
  • I-Code SLI-S [HF | 13,56 MHz | 256 Byte]
  • NTAG 213/215/216 [HF | 13,56 MHz | 144/504/888 Byte]
What are RFID transponders?2021-03-15T13:16:20+00:00

RFID (Radio Frequency IDentification) transponders are responsible for data exchange. They are used to store data and play it back on request without contact and without visual contact. RFID transponders consist of an RFID chip and an antenna. When the RFID transponder is held up to a reader, the data stored on the chip is transmitted by means of electromagnetic waves.

RFID transponders come in different forms. The most common media are RFID cards, RFID key fobs, RFID wristbands as well as RFID tags and RFID labels.

What can you do with RFID transponders?2021-03-15T13:17:49+00:00

The areas of application for RFID transponders are very diverse. Because of their ability to transmit data over short distances without contact, they are used primarily in the areas of access control, time recording and e-payment. Especially in the leisure sector, such as in fitness studios or swimming pools, RFID cards and wristbands are perfect for member identification, e.g. at the turnstile in the entrance area, at the locker lock or at the snack machine.

But RFID transponders are also used in logistics, e.g. when goods need to be identified quickly and without visual contact. Would you like to learn more about the areas of application? Then you can look here.

What RFID frequencies are there?2021-03-15T13:16:56+00:00

RFID systems are divided according to the frequency range in which they operate. Frequency refers to the size of the radio waves used for communication between system components.  RFID systems operate in low frequency (LF), high frequency (HF) and ultra-high frequency (UHF) ranges.  Radio waves behave quite differently in each frequency range mentioned, with advantages and disadvantages associated with the use of each frequency range.

A lower frequency results in a lower read range and slower data read rate, but at the same time enhanced capabilities in terms of reading in the near field range or on metallic or liquid surfaces.  Systems operating in higher frequency ranges generally have faster data transfer rates and longer read ranges than systems operating in lower frequency ranges. However, they are more sensitive to radio wave interference caused by liquids and metals in the environment.

How do RFID transponders work?2021-03-15T13:17:22+00:00

RFID transponders consist of an RFID chip and an antenna connected to the chip. When an RFID transponder is held up to a reader, the data stored on the chip is transmitted by means of electromagnetic waves. The power supply can be either active (active transponders), where a battery is integrated, or passive (passive transponders), where the RFID transponder receives its required energy from the electrical field of the reader.

What are the advantages of RFID transponders over barcodes?2021-03-15T13:18:19+00:00

RFID transponders are able to transmit data even over long distances. In addition, there does not have to be direct visual contact between the medium and the reader, but only within the range of the reader. RFID can also be used to transmit encrypted data. Barcodes, on the other hand, can only be read over short ranges with a direct line of sight and data cannot be transmitted in encrypted form.

What is the difference between RFID and NFC transponders?2021-03-15T13:18:45+00:00

NFC stands for Near-Field-Communication and is also based on RFID protocols.

The main difference to RFID is that an NFC device can act not only as a reader but also as a tag (card emulation mode). In peer-to-peer mode, it is also possible to transmit information between two NFC devices.

NFC operates on the same frequency as HF RFID systems (13.56 MHz). For this reason, NFC only has a very short range, so two NFC devices must be in close proximity to exchange data. As a rule, this is no more than a few centimetres. This is why NFC is often used for secure communication or data transmission, e.g. for access control or in the consumer sector for contactless payment.

What is the reading range of RFID transponders?2021-03-15T13:19:37+00:00

The reading range depends on the RFID transponder type. Basically, we can distinguish between these types:

  • Low frequency range (30 kHz to 300KHz) – range 10cm
  • High frequency range (3 to 30 MHz) – range 10cm to 1m
  • Ultra high-frequency range (300 MHz to 3 Ghz) – range up to 12m
  • Active RFID systems (mostly ultra-high frequency range) – range up to 100m
How much do RFID transponders cost?2021-03-15T13:21:43+00:00

The costs of RFID transponders depend on many factors, such as range, application purpose, energy supply, etc. Generally speaking, the more complex the requirements, the more technology is needed in the chips and therefore the price also increases. If you would like to get an overview, please take a look at our offer in the RFID Shop 

About our company

iDTRONIC Smart TAG is one of the leading suppliers of innovative and customized RFID transponders and a specialized manufacturer of RFID-based smart cards and tags. Since 2003, the company has supplied the global market with more than 45 million RFID-based smartcards, keyfobs, wristbands as well as RFID tickets and labels in various form factors and designs.

Our core competence is the individual personalization of products and the creation of user-defined designs. All iDTRONIC Smart Tags can optionally be equipped with common RFID standards LF 125 kHz, HF 13.56 MHz and UHF 868 MHz. As a certified partner we offer the common chip types in various designs of leading manufacturers: NXP Mifare, Hitag, I-Code, LEGIC, Temic, 1DT-M1K / Fudan.

Smart Tags from iDTRONIC are used for various applications such as gyms, libraries, entrances, wellness resorts, hotels, ski resorts, leisure and adventure parks, soccerhalls, swimming pools, ticketing, EV-mobility/charging stations and logistics as well as in many other areas.

The advantages of iDTRONIC Smart TAG:

  • High quality products
  • Production based on ISO9001
  • Large selection of RFID-ICs incl. microcontroller
  • Comprehensive personalization and encoding service
  • Short delivery times + quick service option
  • Creation of customized designs
  • Production service also for small quantities
  • High production volume (up to 2 million units per month)
  • Competitive prices
  • Outstanding value
  • Comprehensive and professional customer service
  • Trained and product-oriented customer service



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