EXHIBIT 23.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


IRIS International, Inc.
Chatsworth, California

We  hereby  consent  to the  incorporation  by  reference  in this  Registration
Statement of our reports dated February 25, 2005,  relating to the  consolidated
financial  statements  and  the  effectiveness  of  IRIS  International,  Inc.'s
internal  control over financial  reporting,  appearing in the Company's  Annual
Report on Form 10-K for the year ended December 31, 2004.


/s/ BDO Seidman, LLP
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BDO Seidman, LLP

Los Angeles, California
August 26, 2005