SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 __________________ FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 2, 1999 ---------------- CRITICARE SYSTEMS, INC. ------------------------------------ (Exact name of registrant as specified in its charter) Delaware -------------------------- (State or other jurisdiction or incorporation) 000-16061 39-1501563 --------- ---------- (Commission File (I.R.S. Employer I.D. Number) Number) 20925 Crossroads Circle Waukesha, Wisconsin 53186 ------------------------ ----------- (Address of Principal Executive (Zip Code) Offices) 414-798-8282 ------------ (Registrant's telephone number; including area code) Item 4. Changes in Registrant's Certifying Accountant. - ----------------------------------------------------------- (a) Deloitte & Touche LLP (the "Former Accountants") resigned as independent accountants for Criticare Systems, Inc. (the "Company") on October 5, 1999. Information concerning the Former Accountants' resignation was disclosed in a Form 8-K filed on October 13, 1999, as amended on October 25, 1999. (b) Effective November 2, 1999, the Company engaged BDO Seidman, LLP as its independent accountants to report on the Company's financial statements. 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, Criticare Systems, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. CRITICARE SYSEMS, INC. Date: November 5, 1999 BY /s/ Joseph M. Siekierski --------------------------- Joseph M. Siekierski, Vice President- Finance 3