Rev. 1.5 P/N 119-030 18 March 2004Lake Shore Cryotronics, Inc.575 McCorkle BoulevardWesterville, Ohio 43082-8888 USAE-Mail Addresses:sales@lakeshore.comservice@lakeshore.comVisit Our Website:www.lakeshore.comFax: (614) 891-1392Telephone: (614) 891-2243Methods and apparatus disclosed and described herein have been developed solely on company funds of Lake Shore Cryotronics, Inc.No government or other contractual support or relationship whatsoever has existed which in any way affects or mitigates proprietaryrights of Lake Shore Cryotronics, Inc. in these developments. Methods and apparatus disclosed herein may be subject to U.S. Patentsexisting or applied for. Lake Shore Cryotronics, Inc. reserves the right to add, improve, modify, or withdraw functions, designmodifications, or products at any time without notice. Lake Shore shall not be liable for errors contained herein or for incidental orconsequential damages in connection with furnishing, performance, or use of this material.User’s ManualModel 421Gaussmeter