OSI Systems to Host Conference Call to Discuss Hold Baggage Screening Order Announced Today with Manchester Airport Group

OSI Systems, Inc. (NASDAQ:OSIS) announces that it will
host a conference call at 9:00 a.m. (12:00 p.m. EST) today, March 7,
2006 to discuss Rapiscan Systems' announced contract from Manchester
Airport Group for its state-of-the-art Rapiscan RTT120 CT system for
high speed hold baggage screening. The call will be hosted by Mr.
Deepak Chopra, the Chairman and CEO of OSI Systems.
   To listen to the live web cast of the conference call please visit
www.osi-systems.com and follow the link from the home page.
   A replay of the conference call will be available from 11:00 a.m.
(2:00 p.m. EST) on March 7, 2006 through March 14, 2006. The replay
may be accessed by calling 888-286-8010 (domestic) or [phone]
(international) and entering the replay passcode "22350196."

   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 delivery products, and
optoelectronic-based components, as well as a provider of engineering
and manufacturing services. 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.