Exhibit 15 May 3, 2004 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We are aware that our report dated April 26, 2004 on our review of interim financial information of Honeywell International Inc. (the "Company") as of and for the period ended March 31, 2004 and included in the Company's quarterly report on Form 10-Q for the quarter then ended is incorporated by reference in its Registration Statements on Forms S-8 (Nos. 33-09896, 33-51455, 33-55410, 33-58347, 333-57515, 333-57517, 333-57519, 333-83511, 333-34764, 333-49280, 333-57866, 333-57868, 333-91582, 333-91736, 333-105065, and 333-108461), and Form S-3 (Nos. 33-14071, 33-55425, 333-22355, 333-49455, 333-68847, 333-74075, 333-34760, 333-86874 and 333-101455) and on Form S-4 (No. 333-82049). Very truly yours, /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP