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HSChapter 90
U.S. imports of instruments for measuring voltage, current, resistance, or power — without recording device (nesoi) (HS 903033) totaled $54.4M in July 2026, traded with 76 countries.
Importers of Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI) paid $4.5M in duties in July 2026 — an effective duty rate of 12% on $35.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI) imports of $54.4M in July 2026 ran 13% above the year-to-date monthly average of $48.2M.
Last updated: July 2026 dataNon-recording instruments for measuring or checking voltage, current, resistance, and power form a workhorse category for electrical testing across industrial, utility, and electronics manufacturing sectors. The US schedule subdivides this heading into four 10-digit lines — covering voltage/current/resistance testers (9030330040), power-measuring apparatus (9030330080), dedicated resistance instruments (9030333400), and a residual NESOI line (9030333800) — allowing precise classification by measured parameter. Mexico is the leading supplier to the US market, with Germany, China, Taiwan, and Japan also significant sources. Goods of Chinese origin in this heading warrant a Section 301 tariff review prior to entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2.7K shipments/mo
Classification follows the instrument's primary or predominant function. A device designed principally to measure power (watts, VA, power factor) belongs under 9030330080, while one focused on voltage, current, or resistance testing falls under 9030330040. When a single instrument performs all functions equally, the importer should consult the General Rules of Interpretation and, if needed, seek a binding ruling from CBP.
The presence or absence of a recording device is a classification criterion, not necessarily a duty-rate driver — both categories may carry the same general rate of duty. However, the distinction matters for correct tariff-line selection, and misclassification can trigger penalties. Always verify the current rate in the Harmonized Tariff Schedule, as rates can be modified by trade-remedy orders.
Supplier Network
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9030333800 | Inst/App for Meas/Check Volt/Curr/Pwr W/O Rec Nes | $50.9M | 7.81% | 64.01% | $4.0M |
| 9030333400 | Resistance Meas Instruments W/O A Recording Device | $3.5M | 13.84% | 88.27% | $478K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9030330040 | Apparatus to Test Voltage or Current or Resistance | $25.1M |
| 9030330080 | Inst&appts for Measuring/Checking Power, NESOI | $13.3M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$54.4MYoY · Pro
Exports
$38.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
customs district
destination
entry
rate provision · imports
29.8% enters free of duty; the effective duty rate is 8.19%.