Pulse Oximeter — HS Code
Instruments for measuring blood-oxygen saturation — pulse oximeters
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HS Code
9018 — Instruments used in medical sciences
Classification Context
Chapter
Chapter 90 — Medical instruments
Heading
9018 — Instruments used in medical sciences
Applicable Rule
GRI 1 — pulse oximeters are medical measuring instruments under 9018.19
Prior Rulings
EU — EBTI (Binding Tariff Information)
Search EU EBTI databaseUS — CBP CROSS Ruling Database
Search US CBP CROSS rulingsUK — HMRC Trade Tariff
View UK Trade Tariff commodityClassification Notes
Fingertip pulse oximeters measuring SpO2 and heart rate are classified under 9018.19. Handheld pulse oximeters used in clinical settings are also 9018.19. Smart rings and fitness trackers with SpO2 sensors are classified as wearables under the essential character rule — typically 8542 or 8517 for connected devices. The oximeter reading functionality alone does not move a consumer device from electronics to medical instruments unless it is specifically designed and certified as a medical device.
MFN Duty Rates by Market
European Union
9018.19.10
EU Combined Nomenclature (CN) rate — applies to all 27 EU member states
United States
9018.19.10
US Harmonized Tariff Schedule (HTS) MFN rate — Section 301 tariffs may add to China-origin goods
United Kingdom
9018.19.10
UK Global Tariff (UKGT) — post-Brexit tariff schedule, independent of EU CN
Related searches
Official Sources & References
WCO HS Nomenclature
World Customs Organisation — the international standard behind all HS codes
wcoomd.org
EU TARIC Database
European Commission integrated tariff — EU Combined Nomenclature (CN) rates
ec.europa.eu
US HTS Schedule (USITC)
United States International Trade Commission — official US Harmonized Tariff Schedule
hts.usitc.gov
UK Global Tariff (HMRC)
His Majesty's Revenue and Customs — UK Trade Tariff post-Brexit
trade-tariff.service.gov.uk
Disclaimer: Duty rates shown are MFN (Most-Favoured-Nation) base rates sourced from live tariff database and verified April 2026. Actual duties may differ based on country of origin, applicable trade agreements (e.g. GSP, CETA, UK-EU TCA), anti-dumping measures, or changes to tariff schedules. Always verify with the official tariff database of the importing country before making customs declarations.
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