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HSChapter 90
U.S. imports of gas or smoke analysis apparatus (HS 902710) totaled $96.2M in July 2026, traded with 65 countries.
Importers of Gas or Smoke Analysis Apparatus paid $6.2M in duties in July 2026 — an effective duty rate of 10% on $61.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataCombustion analyzers, emissions monitors, and industrial gas detectors used in environmental compliance, process safety, and stack-emission testing are the commercial core of this heading. The US schedule distinguishes electrical apparatus (9027102000), optical non-electrical instruments (9027104000), and other types (9027106000) — a split that matters for both duty rates and EPA or OSHA regulatory acceptance of the measurement method. Mexico is the leading US import source, with Germany and Japan supplying high-precision analytical units widely used in laboratory and continuous-emissions-monitoring (CEMS) applications. Importers should note that apparatus intended for vehicle exhaust testing may face additional scrutiny regarding EPA certification requirements.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
4.8K shipments/mo
Heading 9027.10 covers apparatus whose primary function is analyzing the composition or properties of a gas or smoke mixture. Simple alarm-type gas detectors that only signal the presence of a gas above a threshold — without providing compositional analysis — may instead classify under Chapter 85 as electrical safety or signaling equipment. The distinction turns on whether the device performs qualitative or quantitative analysis versus merely triggering an alert.
CBP expects technical specifications confirming the operating principle: instruments using infrared, UV, or visible-light absorption (e.g., NDIR analyzers) without an electrical measurement output classify as optical non-electrical under 9027104000, while those with electronic signal processing and output classify as electrical under 9027102000. Manufacturer datasheets and circuit diagrams are the standard supporting documents.
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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 |
|---|---|---|---|---|---|
| 9027102000 | Electrical Gas or Smoke Analysis Apparatus | $79.2M | 5.98% | 59.92% | $4.7M |
| 9027106000 | Gas or Smoke Analysis Apparatus, NESOI | $14.3M | 9.03% | 81.02% | $1.3M |
| 9027104000 | Optical Inst&appts, Gas or Smoke Analysis,Exc Elec | $2.7M | 7.94% | 76.06% | $214K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9027100000 | Gas or Smoke Analysis Apparatus | $102.9M |
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.
ImportsExports
Imports
$96.2MYoY · Pro
Exports
$102.9MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Mexico and Germany together supply 41% of it.
customs district
destination
entry
rate provision · imports
33.8% enters free of duty; the effective duty rate is 6.49%.