First Class – RFID readers and OEM modules

of the leading international manufacturers. System integrators and end customers trust into the high quality of our products. Here you’ll find the right reading equipment for your application. Datasheets, prices, detailed documentation and software tools are available for download.

>> Choose the right frequency for your RFID application – please contact us if you need help to choose the right product.

 Which technology do I need ?

Transponders or tags differ by different frequency ranges.


It can be classified according to 4 different kinds:

- Low Frequency 135 kHz
- High Frequency 13.56 MHz
- Ultra High Frequency 860-930 MHz
- Microwaves 2.45 GHz


An important criterion for the selection of RFID systems is the frequency band, on which the RFID reader (writing and/or reader) with the transponder communicates. I must be paid attention to the fact that the RFID system is not affected by other radio systems or other systems of it is disturbed. Therefore RFID applications on the ISM frequency bands (ISM = Industrial, Scientifical, Medical) work, which are reserved particularly for applications from the ranges industry, science and medicine.

Pro and cons of the different frequency bands:

Low Frequency 100-135 kHz

Pro
> large number of different designs and sizes of transponders available
> property penetration of non-metallic articles, water and organic fabric
> standardisation by ISO 11784/85
> relative insensitively to metallic enviromental influences
> frequency band world-wide available
> high one permitted transmitting power 

Cons
> no printed coils possible, transponders are manufactured with wire reeling antennas
> small transmission rate

High Frequency 13.56 MHz

Pro
> use of favorable passive transponders
> standardisation by ISO 15693, ISO 14443A and ISO 14443B
> higher data capacity
> middle channel transfer rate (26 kBit/s)
> frequency band world-wide available

Cons
> high absorption by metallic environment
> reader calibration width by legal regulations limited
> large ranges require large antenna designs

Ultra High Frequency 860 - 915 MHz

Pro
> large range
> simple antenna design
> economical
> standardisation (EPC)

Con
> bad penetration of water and organic fabric