HAWTHORNE, Calif.--(BUSINESS WIRE)--OSI Systems, Inc. (NASDAQ:OSIS) today announced it is scheduled to participate at Benchmark’s One-on-One Investor Conference on Thursday, May 28, 2015 in Milwaukee, WI. Management will hold meetings with institutional investors throughout the day. About OSI Systems, Inc. OSI Systems, Inc. is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in the homeland security, healthcare, defense