National Instruments (NATI) 10-K 2005 FY Annual report

EXHIBIT 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Forms S-8 (No.’s 333-91671, 333-118034 and 333-127751) of National Instruments Corporation of our report dated March 4, 2005 relating to the consolidated financial statements and financial statement schedule, which appears in this Form 10-K.

/s/    PricewaterhouseCoopers LLP

         Austin, Texas
         February 23, 2006