Exhibit 5.2

Luther S.A.

Société anonyme inscrite au barreau de Luxembourg

R.C.S. Luxembourg : B 195777

DH Europe Finance S.A.

1B Heienhaff

L-1736 Senningerberg

Danaher Corporation

2200 Pennsylvania Avenue, N.W., Suite 800W

Washington, D.C. 20037-1701

Luxembourg, 8 July 2015

Dear Sirs,

We are acting as special Luxembourg legal counsel to DH Europe Finance S.A., a public limited liability company (société anonyme) incorporated and existing under the laws of the Grand Duchy of Luxembourg, having its registered office at 1B Heienhaff, L-1736 Senningerberg, Grand Duchy of Luxembourg and registered with the Luxembourg Trade and Companies Register under number B 197470 (the “Company”) in connection with the issuance by the Company of EUR 500,000,000 aggregate principal amount of floating rate senior notes due 2017, EUR 600,000,000 aggregate principal amount of 1.000 % senior notes due 2019, EUR 800,000,000 aggregate principal amount of 1.700 % senior notes due 2022 and EUR 800,000,000 aggregate principal amount of 2.500 % senior notes due 2025 (collectively, the “Notes”). The Notes will be fully and unconditionally guaranteed by Danaher Corporation (“Danaher”) (all such guarantees and Notes, collectively the “Securities”).

The Securities are being issued pursuant to an underwriting agreement (the “Underwriting Agreement”) dated as of 1 July 2015, entered into among the Company, Danaher, and the underwriters named therein. The Securities will be issued pursuant to an indenture (the “Base Indenture”) entered into among the Company, Danaher, as guarantor, and The Bank of New York Mellon Trust Company, N.A., as trustee, and a supplemental indenture (the “Supplemental Indenture” and together with the Base Indenture, the “Indenture”) dated as of 8 July 2015 entered into among the Company, Danaher, and The Bank of New York Mellon Trust Company, N.A., as trustee. Danaher filed with the Securities and Exchange Commission (the “Commission”) a Registration Statement on Form S-3 (File No. 333-203948) under the

Securities Act of 1933, as amended (the “Securities Act”), on May 7, 2015, and Danaher and the Company filed with the Commission a Post-Effective Amendment No. 1 to the Registration Statement (as so amended, the “Registration Statement”) on Form S-3 (File No. 333-203948) under the Securities Act, on June 15, 2015, and the prospectus dated June 15, 2015, as supplemented by the preliminary prospectus supplement dated June 16, 2015 (the “Preliminary Prospectus Supplement”), and the final prospectus supplement dated 1 July 2015 (the “Prospectus Supplement”).

We want to stress that we do not represent ourselves to be familiar with any laws other than the laws of the Grand Duchy of Luxembourg (“Luxembourg Law”) and, in giving this opinion, we assume that there does not exist any provision in other law affecting our opinion.

The opinions expressed below are limited to Luxembourg Law currently in effect. We have made no investigation of the laws of any jurisdiction outside Luxembourg as a basis for this opinion and do not express or imply any opinion with respect to the matters governed by or to be determined on the basis of any such laws outside Luxembourg.

In connection with this opinion, we have seen the following documents:

The documents listed under items A. to C. are together referred to as the “Corporate Documents”.

The documents listed under items D. to F. are together referred to as the “Opinion Documents”.

Except as stated above, we have not, for the purposes of this opinion, examined any contracts, deeds, instruments or other documents relating to the Opinion Documents or entered into by or

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affecting any party to any such contracts, deeds, instruments or documents, or any corporate records of any such party, save that with respect to the Company, we have reviewed the Corporate Documents and have not made any other enquiries concerning such parties. In particular, but without limitation, we have not investigated whether any such parties will, by reason of the transaction contemplated by the Opinion Documents (and any document in connection therewith), be in breach of any of its obligations under any such contracts, deeds, instruments or documents.

For purposes of this opinion we assumed each of the following without any further verification:

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Based on the foregoing, and subject to the qualifications stated herein, we are of the opinion that insofar as Luxembourg Law is concerned as of the date hereof and without regard to any change in facts and circumstances which may occur subsequent to the issuance of this opinion:

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This opinion is subject to the following qualifications:

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This opinion shall be governed by Luxembourg Law. The Courts of Luxembourg shall have exclusive jurisdiction to settle any dispute among the parties hereto arising in connection with this opinion.

We hereby consent to the filing of this opinion with the Commission as an exhibit to Danaher’s Current Report on Form 8-K to be filed on or about 8 July 2015, which Form 8-K will be incorporated by reference into the Registration Statement and to the use of our name in the Preliminary Prospectus Supplement and Prospectus Supplement under the caption “Legal Matters.” In giving such consent, we do not hereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission.

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This opinion is issued by and signed on behalf of Luther S.A., admitted to practice in Luxembourg and registered on the List V of lawyers of the Luxembourg bar association.

Yours sincerely,

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