Sourcing bimetal dial thermometers from China
Bimetal dial thermometers and identifiable thermometer parts from China carry 0% UK duty across the relevant lines, with no listed trade remedies. For consumer models, importers remain responsible for safety after placing products on the market. Cambridge China Bridge sources bimetal dial thermometers.
Zero duty on mechanical dial thermometers
Read from the UK Trade Tariff on 30 September 2026, heading 9025 covers thermometers and other temperature, pressure and humidity measuring instruments. Standalone bimetal dial thermometers are candidates for 9025 19 00 90, while identifiable thermometer parts fall within 9025 90 00 90. The table repeats the thermometer code for different mounting arrangements; these are product variants, not separate tariff lines.
Both relevant lines carry 0% duty for goods from China, with no listed anti-dumping or countervailing duty, suspensions or import controls. Other lines within the heading have mercury controls. Confirm with the relevant authority or your customs broker whether mercury-added thermometers may be imported for sale and whether any exceptions apply. Specify a mechanical bimetal sensing element and obtain written confirmation of the construction.
Confirm the commodity code using the mechanism, mounting drawing and intended use. A thermometer that indicates temperature differs from a thermostat that automatically regulates it. See the wider thermometer and hygrometer guide for neighbouring products.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Rear-entry bimetal dial thermometers | 9025 19 00 90 | 0% | None |
| Identifiable thermometer parts and accessories | 9025 90 00 90 | 0% | None |
Specify the stem, dial and mounting
Agree the temperature range, scale units, dial diameter, graduation spacing and acceptable reading error across the range. Specify rear-entry, bottom-entry or adjustable-angle construction, stem length and diameter, sensing length, immersion depth and mounting thread. State whether adjustment is accessible and how it will be secured after calibration.
For installation in a thermowell, send its internal dimensions and agree the assembled test arrangement. Record the process medium, operating temperature, vibration, cleaning method and viewing position. Ask for the factory calibration method and sample records tied to the supplied model.
General product safety rules in Great Britain cover products intended for, or reasonably likely to be used by, consumers. Importers remain responsible for product safety after placing products on the market. Agree the intended users and assess sharp stems, hot surfaces and breakable dial windows; arrange testing and certification around the actual application.
Worked duty example
Illustrative example, not a quote: 900 rear-entry bimetal dial thermometers, illustrative only under 9025 19 00 90, invoiced at £10,000 free on board, with £900 of freight and insurance to the UK. The customs value is £10,900. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £10,900, so it is £2,180. 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
Accuracy: compare readings with a calibrated reference across the agreed range, using the specified immersion depth. Check readings during heating and cooling, allowing them to stabilise.
Movement: check that the pointer moves freely without rubbing the dial or window. Look for sticking, loose pointers and readings that fail to return after a temperature cycle.
Fit: measure stems and mounting threads against the drawing. Assemble samples with the intended thermowell or mounting fixture and check clearance and dial orientation.
Build: inspect window retention, bezel joints, stem straightness and adjustment security. Check scale legibility, model identification, calibration records and instructions against the approved sample.
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What goes wrong
A dial can read correctly at room temperature yet depart from the agreed tolerance elsewhere. Shallow immersion or a poorly matched thermowell can also produce misleading readings. Compare the supplied instrument in its intended arrangement rather than accepting a calibration record for a different stem or range.
Bent stems, loose pointers and rubbing movements can appear after transport. Wrong threads or an unsuitable entry direction can prevent installation even when the reading is accurate. Photograph arrival damage, retain affected samples and record failures before releasing the batch.
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 bimetal dial thermometers from China?
The supplied tariff snapshot shows 0% duty for 9025 19 00 90 and thermometer parts under 9025 90 00 90, with no listed anti-dumping or countervailing duty.
Which commodity code covers a bimetal dial thermometer?
9025 19 00 90 is the candidate for a standalone bimetal thermometer. Confirm classification from the sensing mechanism and intended function, especially if the instrument also controls equipment.
How should I check a bimetal thermometer's accuracy?
Compare it with a calibrated reference across the agreed range, at the specified immersion depth. Check both heating and cooling readings after stabilisation and record the results.
What should I send the factory for a thermowell-mounted thermometer?
Send the thermowell drawing, mounting thread, internal dimensions, required stem length, temperature range and viewing position. Agree a sample assembly and test it before approving production.