Exhibit 2.1 AGREEMENT AND PLAN OF MERGER BY AND BETWEEN ISC ACQUISITION CORPORATION AND INDUSTRIAL SCIENTIFIC CORPORATION DATED AS OF FEBRUARY 23, 1999 AGREEMENT AND PLAN OF MERGER dated as of February 23, 1999 (the "Agreement") between ISC...Merger Agreement • March 4th, 1999 • McElhattan Kent D • Industrial instruments for measurement, display, and control • Pennsylvania
