Spacelabs Healthcare, Inc. Announces Earnings Conference Call For Wednesday September 13, 2006 AT 7:00AM PT (10:00AM ET)

OSI Systems, Inc. (NASDAQ: OSIS) announced today that its healthcare subsidiary, Spacelabs Healthcare, Inc. will hold a conference call on Wednesday September 13, 2006 to discuss its full year results for fiscal 2006. The results will be issued ahead of the conference call scheduled for 7:00 a.m. PT (10:00 a.m. ET).

This call is being webcast by Thomson/CCBN and can be accessed either through www.earnings.com, or www.osi-systems.com.

A replay of the conference call will be available from 12:00 p.m. PT (3:00 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.

About Spacelabs Healthcare, Inc.

Spacelabs Healthcare (www.spacelabshealthcare.com) is an international developer, manufacturer and distributor of medical equipment and services including patient monitoring solutions, anesthesia delivery and ventilation systems, diagnostic cardiac solutions, pulse oximeters and sensors and bone densitometers selling to hospitals, clinics and physicians offices.  Additionally, the company provides ECG laboratory services to pharmaceutical companies undertaking clinical trials, whereby patient ECG data are recorded, analyzed, tabulated and interpreted.

The company has established brand names in both medical devices and medical services such as Spacelabs, Blease and Dolphin.  The company employs approximately 1,050 personnel in its 14 offices in the UK, Canada, France, Germany, Finland, Singapore and the United States. The company conducts its manufacturing and R&D in India, the UK and the United States. The company is listed on the London Stock Exchange under the ticker symbol, SLAB.

For Further Information

OSI Systems Inc                       
12525 Chadron Ave
Hawthorne CA 90250
(310) 349 2237
Contact: Jeremy Norton Director of Investor Relations