Over 35 years of innovation in the development of particle size analysis technology...

The Leeds & Northrup Years (1972-1993)

  
     Series 7991             Series 7995       Series 7997 & SVR (Small Volume Recirculator)

    
         UPA150               Series 9300 system - X100                  ASVR                               VSR              

The Honeywell Years (1994-1999)

        
             SRA200                        UPA250                      UPA251 with UAC

The Microtrac Inc. Years (2000-Present)

  
       Series 3000                LVR-AS                  Series 3500            Turbotrac

   
                Bluewave                 Zetatrac & Zetrator            

• 1972
• 1973
• 1974
• 1977
• 1978
• 1981
• 1982
• 1983
• 1985
• 1987
• 1988
• 1989
• 1990
• 1991
• 1993
• 1994
• 1995
• 1996
• 1997
• 1999
• 2000
• 2001
• 2002
• 2003
• 2004
• 2005
• 2007
• 2008
• 2009