EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement No. 333-126329 on Form S-8 of Landauer, Inc. of our report dated June 25, 2012 appearing in this Annual Report on Form 11-K of the Landauer, Inc. 401(k) Retirement Savings Plan for the year ended December 31, 2011.

/s/ Crowe Horwath LLP

Crowe Horwath LLP

Oak Brook, Illinois

June 25, 2012