NAPCO SECURITY TECHNOLOGIES INC

To the Stockholders and the Board of Directors of Napco Security Technologies, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of Napco Security Technologies, Inc. and subsidiaries (the "Company") as of June 30, 2024, the related consolidated statements of income, stockholders' equity, and cash flows, for the year ended June 30, 2024, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of June 30, 2024, and the results of its operations and its cash flows for the year ended June 30, 2024, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of June 30, 2024, based on criteria established inInternal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated August 29, 2024, expressed an adverse opinion on the Company's internal control over financial reporting because of a material weakness.

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Excess and Slow-Moving Inventory Reserve— Refer to Note 1 and 6 to the financial statements

Critical Audit Matter Description

Management records a reserve for excess and slow-moving inventory, which represents any excess of the cost of the inventory over its estimated net realizable value. The reserve is calculated using an estimated reserve percentage applied to the inventory based on age, historical trends, product life cycle, requirements to support forecasted sales, and the ability to find alternate applications of its raw materials and to convert finished product into alternate versions of the same product. The reserve for excess and slow-moving inventory was $5 million at June 30, 2024.

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We identified the reserve for excess and slow-moving inventory as a critical audit matter because of the significant estimates and assumptions management makes to determine the reserve, specifically the reserve percentage and forecasted inventory usage. This required a high degree of auditor judgment when performing audit procedures to evaluate the reasonableness of management’s reserve for excess and slow-moving inventory.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the significant estimates and assumptions used in the excess and slow-moving inventory reserve included the following, among others:

/s/DELOITTE & TOUCHE LLP

Jericho, New York

We have served as the Company's auditor since 2024.

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