Gas Sensor Semiconductor Chip
A metal-oxide-semiconductor (MOS) gas sensor chip that detects reducing or oxidizing gases by measuring changes in electrical conductivity of a semiconductor film. It is a semiconductor-based transducer because it converts a chemical phenomenon (gas concentration) into an electrical signal, and it is sold as a discrete component for air quality monitors and industrial safety devices.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the sensor is imported as a complete gas analysis instrument with a display and housing
Instruments for physical or chemical analysis are classified in heading 90.27.
If the chip includes an integrated circuit that processes the sensor signal
Integrated circuits with processing functions are classified under 8542.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the chip is not combined with a microcontroller or signal-conditioning circuitry that would make it an integrated circuit
• Provide the manufacturer's datasheet showing the semiconductor sensing element to justify classification
• If the sensor is part of a complete gas detector with alarms, that product belongs in Chapter 90
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