Exhibit 16.1
September 18, 2017
U.S. Securities and Exchange Commission
Office of the Chief Accountant
100 F Street, NE
Washington, DC 20549
Re: Sierra Wireless, Inc.
Dear Sir or Madam:
We have read the section titled “Change in Numerex Accountants” of FormF-4 of Sierra Wireless, Inc. dated September 18, 2017, and have the following comments:
1. | We agree with the statements made in the first, second, third, fourth, and sixth paragraphs concerning our firm contained therein. |
2. | We have no basis on which to agree or disagree with the statements made in the fifth paragraph. |
Very truly yours,
/s/ GRANT THORNTON LLP