User guide
Page 17
MadgeTech PR2000
  5.5.iii.d Device Version
  Pressing the F4 key while viewing the Maximum or Minimum Device 
  Range screens will display the Device Version screen, containing  
  information such as firmware revision number and communications  
  baud rate. Values on this screen cannot be modified. 
  5.5.iii.e Firmware Version
  Firmware details can be viewed by pressing the F2 key while viewing 
  the Device Version screens. These details include the firmware version 
  number, date and time of firmware creation, and checksum.










