U.S. imports of Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI) (HS 903033) totaled $76.1M in August 2026, imported from 77 countries.
Importers of Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI) paid $6.1M in duties in August 2026, an average duty rate of 8.66% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI) imports of $76.1M in August 2026 ran 47% above the year-to-date monthly average of $51.7M.
Last updated: August 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.
2.8K import shipments a month
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.
Subheading 2 of 11 in heading 9030
Subheading 903033 · $76.1M of $381.3M
ImportsExports
Imports
$76.1MYoY · free account
Exports
$40.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $592.8M of Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI) and exported $454.6M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 903033 — Instruments for Measuring Voltage, Current, Resistance, or Power — Without Recording Device (NESOI), so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9030333800 | Inst/App for Meas/Check Volt/Curr/Pwr W/O Rec Nes | $62.8M | 8.43% | 67.57% | $5.3M |
| 9030333400 | Resistance Meas Instruments W/O A Recording Device | $7.8M | 10.58% | 96.22% | $828K |
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 | $28.1M |
| 9030330080 | Inst&appts for Measuring/Checking Power, NESOI | $11.9M |
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.
Imports · August 2026
origin
Mexico and Hungary together supply 43% of it. China pays 37.1% duty; Mexico 0.4%.
customs district
destination
entry
rate provision · imports
23.8% enters free of duty; duty collected equals 8.66% of imports for consumption.