OSI Systems Announces Earnings Conference Call for Wednesday September 13, 2006 at 9:00 AM PT (12:00 PM ET)

OSI Systems, Inc. (NASDAQ:OSIS) today announced that it
will hold a conference call on Wednesday, September 13, 2006 at 9:00
a.m. PT (12:00 p.m. ET) to discuss its fourth quarter and full year
results for fiscal 2006. The results will be issued ahead of the
conference call.
   The call will be webcast by Thomson/CCBN and can be accessed
either at www.earnings.com or www.osi-systems.com.
   A replay of the conference call will be available from 1:00 p.m.
PT (4:00 p.m. ET) on September 13, 2006. The replay may be accessed by
visiting either www.earnings.com or www.osi-systems.com.

   About OSI Systems, Inc.

   OSI Systems Inc. is a Hawthorne, California, based diversified
global developer, manufacturer and seller of security and inspection
systems, medical monitoring and anesthesia products, and
optoelectronic devices and value-added subsystems. The company has
more than 30 years of experience in electronics engineering and
manufacturing and maintains offices and production facilities located
in more than a dozen countries. OSI Systems implements a strategy of
expansion by leveraging its electronics and contract manufacturing
capabilities into selective end product markets through organic growth
and acquisitions. For more information on OSI Systems Inc. or any of
its subsidiary companies, visit www.osi-systems.com.