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SITCSection 8
U.S. imports of instruments & apparatus for measuring or checking electrical quantities (nes) (SITC 87478) totaled $109.8M in April 2026, traded with 56 countries.
Importers of Instruments & Apparatus for Measuring or Checking Electrical Quantities (NES) paid $9.4M in duties in April 2026 — an effective duty rate of 11% on $88.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataServing as the residual catch-all for electrical quantity measurement, SITC 87478 captures instruments that measure parameters beyond voltage, current, resistance, and power — such as frequency meters, power factor meters, phase angle meters, and impedance analyzers — as well as recording-capable variants of instruments that would otherwise fall under 87475. This heading is widely used in power generation, semiconductor fabrication, and industrial automation quality control. The breadth of the NES designation means careful HTS classification review is essential, as specific instrument types may have more precise tariff line homes.
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Because 87478 is a residual 'not elsewhere specified' category, the corresponding HTS schedule contains multiple specific subheadings for particular instrument types. Misclassifying a product into the NES basket when a more specific tariff line exists can result in incorrect duty assessment and potential customs penalties. A licensed customs broker with electronics expertise should review the technical specifications before entry.
Under the SITC structure, instruments that include a built-in recording device are distinguished from those without one. A multimeter or power meter with data-logging output may shift classification from 87475 (non-recording voltage/current instruments) into 87478 or another heading, depending on the primary function and design intent of the recording feature.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| KOREA, SOUTH | $2.4M | $34.9M | +$32.5M |
| MALAYSIA | $18.4M | $8.7M | -$9.6M |
| TAIWAN | $9.9M | $12.6M | +$2.7M |
| GERMANY | $16.0M | $5.2M | -$10.9M |
| CHINA | $3.1M | $15.5M | +$12.4M |
Monthly import values over time