Data loggers:
     - measuring range for voltage: +/-100mV  to +/-10V
     - configurable for mobile or stationary version
     - 16 single ended channels or 8 differential
        channels 
        (the other number of channels possible as well)
      - up to 1000 measurements from 16 channels per
        second  (higher speed possible as well)

 
     - easy setting up
     - data archivisation