Product classification
HS code for Exhaust gas analyzer: 9027.10
Instruments and apparatus, gas or smoke analysis apparatus, for physical or chemical analysis.
Classification of exhaust gas analyzer under HS 9027.10
Exhaust gas analyzers are classified under HS code 9027.10. This classification is situated within Chapter 90, which covers optical, measuring, checking, or precision instruments. Heading 9027 specifically pertains to instruments and apparatus for physical or chemical analysis. Subheading 9027.10 is dedicated to gas or smoke analysis apparatus. These devices are used to determine the chemical composition of exhaust gases from internal combustion engines, boilers, or industrial stacks. They operate based on various physical principles, such as infrared absorption, thermal conductivity, or electrochemical sensors. Because their primary function is the qualitative or quantitative analysis of gas components (such as Carbon Monoxide, Nitrogen Oxides, or Hydrocarbons), they are strictly classified here. This code applies to both portable handheld analyzers used by automotive technicians and large, stationary systems used in industrial environmental monitoring.
- Covers
- Automotive emission testers
- Infrared gas analyzers
- Smoke meters for diesel engines
- Flue gas analyzers for boilers
- CO2 and NOx sensors (as part of analysis systems)
- Also under 9027.10
- Dräger X-am 5000
- Testo 350
- Thermo Scientific iSeries Gas Analyzers
- Horiba PG-350
- MSA Altair 5X
Codes often confused with 9027.10
Common mistake. Exhaust gas analyzers are sometimes misclassified under 9026, which covers instruments for measuring or checking the flow, level, or pressure of liquids or gases. However, 9026 does not cover chemical analysis. Another common error is 9031, which is a catch-all for measuring or checking instruments not specified elsewhere. Since gas analysis is specifically mentioned in 9027.10, it takes precedence over the general category of 9031.
Top exporters and importers of HS 902710 (the code used for exhaust gas analyzer), 2025
In 2025, the largest exporter of HS 902710 (the code used for exhaust gas analyzer) in UN Comtrade data was Germany, with 24% of world exports; the largest importer in UN Comtrade data was the United States, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 902710, not only exhaust gas analyzer.
Top exporters 2025 · share of world exports
- 1 Germany $2.0B 24% of world exports
- 2 United States $1.2B 14% of world exports
- 3 Czechia $637M 7.6% of world exports
World total: $8.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $1.1B 12% of world imports
- 2 Germany $858M 9.8% of world imports
- 3 China $701M 8.0% of world imports
World total: $8.8B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for exhaust gas analyzer
Brazil classifies exhaust gas analyzer under NCM 9027.10.00: HS 9027.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about exhaust gas analyzer
What is the HS code for Exhaust gas analyzer?
The HS code for Exhaust gas analyzer is 902710 (Instruments and apparatus; gas or smoke analysis apparatus, for physical or chemical analysis). The HS code for an exhaust gas analyzer is 9027.10.
How do I classify Exhaust gas analyzer for customs?
Exhaust gas analyzer is classified under HS code 902710 — Instruments and apparatus; gas or smoke analysis apparatus, for physical or chemical analysis. This is a 6-digit subheading level code.
Does this code include oxygen sensors?
Individual oxygen sensors imported as vehicle parts are often classified under 9027.90 (parts) or 9027.10, but if they are simple electrical resistors, they might fall under 8533.
Which countries are the top exporters of exhaust gas analyzer (HS 902710)?
In 2025, the top exporters of HS 902710 (the code used for exhaust gas analyzer) in UN Comtrade data were Germany ($2.0B, 24% of world exports), the United States ($1.2B) and Czechia ($637M). World exports came to about $8.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of exhaust gas analyzer (HS 902710)?
In 2025, the top importers of HS 902710 (the code used for exhaust gas analyzer) in UN Comtrade data were the United States ($1.1B, 12% of world imports), Germany ($858M) and China ($701M). World imports came to about $8.8B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Exhaust gas analyzer the same in all countries?
The base HS code 902710 for Exhaust gas analyzer is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for exhaust gas analyzer in Brazil?
In Brazil, exhaust gas analyzer (HS 902710) is classified under NCM 9027.10.00.