Feb 19, 2008

OSI Systems to present at The Roth Capital Partners 20th Annual OC conference on Wednesday February 20, 2008

OSI Systems to present at The Roth Capital Partners 20th Annual OC conference on Wednesday February 20, 2008

OSI Systems to present at The Roth Capital Partners 20th Annual OC conference on Wednesday February 20, 2008

OSI Systems, Inc. (Nasdaq:OSIS), a vertically-integrated provider of specialized electronic products for critical applications in the security and healthcare industries, announced it will be presenting at 10:30 a.m. PT (1:30 p.m. ET) on February 20, 2008 at the Roth Capital Partners 20th Annual OC Conference being held at the Ritz Carlton hotel in Dana Point, CA.

To listen to the live web cast of the presentation, please visit www.osi-systems.com and follow the link from the front page.  Additional conference information can be found at the Roth Capital Partners web site at www.rothcapital.com.

About OSI Systems, Inc.

OSI Systems, Inc. and its subsidiaries is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications. The Company sells its products in diversified markets, including homeland security, healthcare, defense and aerospace. 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.

For Additional Information, Contact:

Jeremy Norton
Vice President, Investor Relations & Business Development
OSI Systems, Inc.                       
12525 Chadron Ave.
Hawthorne CA 90250   
Tel. (310) 349 2372