Sourcing geophones from China
Geophones from China classified as geophysical instruments under heading 9015 pay 0% UK duty; the relevant parts line also carries 0%. Electronic products within scope need electromagnetic compatibility conformity. Specify the sensor and its recording-system interface before ordering. Cambridge China Bridge sources geophones.
Geophone duty and classification
Read from the UK Trade Tariff on 20 October 2026, heading 9015 covers geophysical instruments as well as surveying and related instruments. Geophones used for seismic measurement are candidates for 9015 80 20 00; dedicated parts and accessories may fall under 9015 90 00 00. The table separates common buying configurations sharing a code. See the wider surveying instruments guide.
Both relevant lines carry 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duty and no suspension. It attaches a DCMS Export Licence entry. Official guidance says there are no licensing requirements for importing objects of cultural interest into Great Britain. Ask your customs broker to confirm how the attached entry affects the declaration, particularly for historic equipment.
Confirm the commodity code against the actual sensor, assembly and intended function. Do not assume that a separately supplied recorder, wireless node or generic cable uses the geophone code. Keep the product specification, connection diagram and invoice descriptions consistent.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Vertical geophones for ground-motion measurement | 9015 80 20 00 | 0% | None |
| Dedicated parts and accessories for geophones, subject to classification | 9015 90 00 00 | 0% | None |
Specify the sensor and recording interface
State whether you need a bare sensing element, a housed geophone or a wired string. Agree vertical or horizontal orientation, natural frequency, sensitivity, coil resistance, damping and usable frequency response. Specify the test conditions and acceptance tolerances, including the load used when measuring sensitivity and damping.
Define connector type, pin allocation, polarity, cable length, shielding, strain relief and ground coupling. Give the factory the recording-system input details and approve a connected sample. For strings, agree sensor arrangement and wiring so that the delivered output matches the recorder.
Confirm with the relevant product safety authority which electromagnetic compatibility conformity and CE or UKCA marking requirements apply to electronic instruments within scope. Assess the delivered configuration rather than assuming a bare sensor and an amplified assembly have the same compliance scope. For battery-powered or wireless assemblies, also review battery, electrical-waste and radio requirements as described in the wider surveying guide.
Worked duty example
Illustrative example, not a quote: Illustrative order: 1,000 housed geophones with cables and connectors under 9015 80 20 00, invoiced at £38,000 free on board, with £2,000 of freight and insurance to the UK. The customs value is £40,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £40,000, so it is £8,000. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Response: compare sampled units with the agreed reference response, sensitivity, natural frequency and damping under the specified load and mounting conditions.
Wiring: check coil resistance, continuity, polarity and connector pin allocation; flex cables while monitoring the signal for intermittent connections.
Housing: check seals, cable entry, strain relief, ground spikes and orientation markings against the approved sample; test any agreed resistance to water ingress.
Traceability: match unit or batch identification to test records, inspect packing for movement and impact damage, and repeat functional checks on arrival.
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What goes wrong
A matching housing can conceal a different sensing element. Changed frequency response, inconsistent damping or reversed polarity can make channels disagree even when continuity checks pass. A cable that fits mechanically may have the wrong pin allocation or shielding arrangement.
Loose ground spikes, damaged seals and weak cable entries can undermine field performance. Agree measurable acceptance criteria before ordering, retain an approved sample, and compare shipment samples with it. Use quality inspection to record defects and test results before dispatch.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For components and parts, see sourcing for manufacturers.
Frequently asked questions
What is the UK import duty on geophones from China?
The supplied tariff record shows 0% for geophysical instruments under 9015 80 20 00 and parts under 9015 90 00 00, with no anti-dumping or countervailing duty.
Which commodity code covers geophones?
9015 80 20 00 is the candidate line for geophysical instruments. Confirm the actual configuration with your customs broker; a separate recorder or generic cable needs its own classification assessment.
Do geophones need CE or UKCA marking?
Confirm with the relevant product safety authority which conformity and marking requirements apply to electronic instruments within electromagnetic compatibility scope. Assess the actual configuration, including amplifiers or wireless functions, before deciding what applies.
How should I test geophones from a Chinese factory?
Check response, sensitivity, damping, coil resistance and polarity against agreed tolerances. Test connectors and cables with your recorder, then repeat functional checks after transport.