The right technology

To offer the optimum solution for all requirements, we use various technologies. These range from optically reading 1D- and 2D-codes to contact-free data transmission through radio frequency identification.


With 1D-codes, the information is represented using lines and gaps of various widths. The black bars and white gaps reflect the light emitted by the 1D-code reader to different degrees. Less light is reflected by the black bars. This is detected by the receiver module of the reader, which converts the information into binary data that can subsequently be processed further and output via an interface.


  • Simple and inexpensive to create
  • Through an integrated check digit, the code is directly checked for validity, thereby making possible high first-pass read rates

Areas of application

  • Electronics, automotive and consumer goods industries
  • Transport logistics
  • Postal shipping



There are two types of 2D-codes: the matrix code and the stacked code. With the matrix code, the information is represented by arranging small geometric cells. The stacked code is a special case. Here, the information is represented by lines and gaps in multiple rows. The camera of the sensor takes a picture of the code. The camera chip detects the contrast between the white gaps and the black cells and converts the information into binary data. This is then processed further and output via an interface. Unlike the 1D-code, the information is contained in the arrangement of the cells.

2D matrix code

2D stacked code


Radio Frequency Identification – RFID

An RFID system consists of a read/write system with integrated and/or external antenna as well as at least one transponder and uses electromagnetic waves for data transmission. Each transponder consists of an antenna and a microchip on which a unique, unchangeable serial number (Unique ID) as well as – depending on the type of transponder – other object-related data is stored.

While active transponders use an integrated power source for data transmission, passive transponders draw the energy required for data transmission from the electromagnetic field of the reader. Here, RFID systems use either low frequencies/LF (125 kHz to 134 kHz), high frequencies/HF (13.56 MHz) or ultra-high frequencies/UHF (865 MHz to 928 MHz). The used frequencies vary depending on operating range, transmission rate and susceptibility to interference. In general: the reading ranges achieved by the system increase with frequency, but so too does the susceptibility to interference.


  • "Visual contact" is not required between write/read unit and transponder: the radio waves penetrate materials such as wood, cardboard or plastic depending on the frequency range
  • Transponders can be integrated in the product or in the transport medium
  • RFID systems are robust and also function reliably in harsh environments independent of contamination
  • When using writable transponders, production and quality data can be stored directly on the transponders during the production process

Areas of application

  • Production control
  • Access control
  • Identification of persons and objects
  • Skid, container and pallet identification
  • Material flow control in conveyor and storage systems or the automotive industry

Selection guide

How will the identification systems be used?

Stationary use
Stationary use
Mobile use
Hand-held scanners
1D-bar code
Stacked code
Directly marked codes

Our suitable products

Min./max. reading distances
(depending on modulus width and optics model)
Product Link
50 – 230 mm
CR 50 About the product
30 – 425 mm
DCR 50 About the product
20 – 71 mm
CR 100 * About the product
40 – 160 mm
BCL 8 About the product
50 – 230 mm
CR 55 About the product
50 – 330 mm
LSIS 220 About the product
30 – 425 mm
DCR 55 About the product
40 – 800 mm
DCR 200i About the product
30 – 310 mm
BCL 148 * About the product
50 – 450 mm
BCL 20 About the product
50 – 180 mm
BCL 95 * About the product
50 – 680 mm
BCL 300i About the product
300 – 1,450 mm
BCL 600i About the product
450 – 1,700 mm
BCL 900i About the product
200 – 2,400 mm
BCL 500i About the product
75 – 10,000 mm
LSIS 422i About the product

Depending on the version, see data for the BCL 500i, BCL 600i and BCL 900i series

MSPi systems About the product
75 – 10,000 mm
LSIS 462i About the product

* Devices for use in laboratory automation