Parts and accessories of instruments and apparatus for measuring, checking or detecting electrical quantities, or ionizing radiations, not elsewhere specified

US trade by year

US imports were $1.18B in the 12 months to Aug 2026, up 36% on the 12 months to Aug 2017. US exports were $1.60B, up 19%. In January 2022 the HS 2022 revision moved some goods between this code and 8524.11, 8524.12, 8524.19 and 12 more, so part of a change across the dashed line can be the revision. In January 2017 the HS 2017 revision moved some goods between this code and 8542.31, 8542.32 and 8542.39, so part of a change across the dashed line can be the revision. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Malaysia
• Taiwan
• Germany
• China
• All countries

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Average prices aren't shown because this product's lines are counted in different units.

The 3 largest suppliers had 41.1% of US imports over the last 12 months.

How the market is shifting

Korea, South gained the most share: 5.8% of US imports over the last 12 months, up from 3.2% in the 12 months before. Malaysia lost the most: 21.3%, down from 26.3%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Malaysia
• Taiwan
• Germany
• China
• All countries

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

1. February–April 2026 · Duty paid: Malaysia 18.6% → 8.8%, Taiwan 16.9% → 9.6%, Germany 14.7% → 9.3%, China 35.2% → 28.7%, Japan 14.8% → 9.8%, all countries 16.9% → 10.5%.
   • Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal TradeDec 18, 2025 · International Trade Administration
   • Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment DealDec 4, 2025 · International Trade Administration
2. October–November 2025 · Duty paid: Malaysia 12.8% → 18.6%, China 47.5% → 35.2%.
   • Implementing Certain Tariff-Related Elements of the U.S.-EU Framework on an Agreement on Reciprocal, Fair, and Balanced TradeSep 25, 2025 · Office of the US Trade Representative
   • Implementing Certain Tariff-Related Elements of the United States-Japan AgreementSep 16, 2025 · International Trade Administration
3. March–May 2025 · Duty paid: Malaysia 0.0% → 10.0%, Taiwan 0.0% → 10.0%, Germany 0.0% → 9.9%, China 21.5% → 56.6%, Japan 0.0% → 10.0%, all countries 1.9% → 13.3%.
4. November 2020 · Duty paid: China 14.6% → 20.4%.
5. January 2020 · Duty paid: China 20.8% → 15.1%.
   • Notice of Product Exclusion and Amendments: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and InnovationDec 17, 2019 · Office of the US Trade Representative
6. August 2018 · Duty paid: China 0.1% → 21.1%.

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. Search the Federal Register for 9030.90

• Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal DeforestationJul 20, 2026 · Office of the US Trade Representative
• Notice of Determination and Request for Comments Concerning Action Pursuant to Section 301: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal DeforestationJun 4, 2026 · Office of the US Trade Representative
• Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal TradeDec 18, 2025 · International Trade Administration
• Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment DealDec 4, 2025 · International Trade Administration

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 120 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.

The biggest market outside the US is Taiwan, which imported $1.93B of this product in 2024, 20.4% of that from the US by its own count; the US records $180.5M of exports there.

Of these, imports into Malaysia grew fastest: up 23% from 2024 to 2025.

Related products

Other products under heading 9030: oscilloscopes, spectrum analyzers etc. for measuring etc. electrical quantities, not elsewhere specified; devices for measuring etc. ionizing radiations; parts etc.. US trade over the 12 months to August 2026.