Sector guides

Sourcing liquid level transmitters from China

Industrial liquid level transmitters and relevant parts from China carry 0% UK duty across the selected lines. For electronic apparatus within scope, the importer must check the manufacturer's conformity assessment and provide importer identification. Cambridge China Bridge sources industrial liquid level transmitters.

Written by Bono Xu, Founder, Cambridge China Bridge · 4 min read · Updated 2026-10-17

Aisles of a large supermarket seen from above, shelves fully stocked

Duty on liquid level transmitters

Read from the UK Trade Tariff on 17 October 2026, the selected lines of heading 9026 carried 0% duty on goods from China, with no recorded anti-dumping or countervailing duty and no listed suspensions. The heading covers instruments measuring or checking liquid flow or level, pressure and other liquid or gas variables, plus parts and accessories.

Electronic liquid level instruments have a dedicated line separate from electronic flow meters. For hydrostatic probes, confirm whether classification follows liquid level measurement or pressure measurement. The electronic pressure line has mercury import and export controls attached. Unless an exemption applies, measuring devices containing mercury cannot be imported from China into Great Britain or sold there. Specify mercury-free instruments.

Confirm the commodity code using the measuring principle, measured variable and whether the shipment contains complete instruments or parts. See the flow meters and pressure gauges guide for the wider heading.

UK duty on these lines for goods of Chinese origin (one code per row), read from the UK Trade Tariff on 17 October 2026.
GoodsCommodity codeDutyAnti-dumping or countervailing duty on China
Electronic liquid level instruments9026 10 29 000%None
Other liquid level instruments9026 10 89 000%None
Electronic pressure instruments, where applicable to hydrostatic probes9026 20 20 000%None
Parts and accessories for level instruments9026 90 00 000%None

Specify the liquid, tank and measuring principle

State whether you need a hydrostatic, radar, ultrasonic or capacitive transmitter. Give the liquid composition, density variation, operating temperature, tank pressure, measuring range and installation position. Describe foam, vapour, turbulence, internal obstructions and any agitator. Agree the process connection, wetted materials, seal material, probe or cable length, power supply, output signal and fault behaviour.

For electronic apparatus within the electromagnetic compatibility rules, importers must check the manufacturer's conformity assessment and provide importer identification. Relevant instructions must accompany the apparatus in English. Where hazardous-substance restrictions apply, importers are responsible for compliance. For instruments intended for potentially explosive atmospheres, confirm the applicable equipment regulations with the relevant authority. Ask for documents matched to the exact model and intended location.

Worked duty example

Illustrative example, not a quote: Illustrative batch of industrial liquid level transmitters under 9026 10 29 00, 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

Calibration: match each certificate to the serial number and ordered range. Compare the output with a reference at several liquid levels, rising and falling, and check repeatability.

Process fit: measure connections, probe length and cable length against the drawing. Check wetted materials and seals against the agreed liquid compatibility information.

Sealing and installation: inspect cable glands, enclosure seals and submerged cable joints. Check the claimed ingress protection against supporting test records and inspect installation clearances.

Documents and configuration: match labels, model identifiers, conformity documents and hazardous-area certificates to the shipment. Check supply requirements, output scaling and fault settings during inspection.

Working out your own order? Send us the product on WhatsApp and we reply the same working day: WhatsApp us

What goes wrong

A hydrostatic transmitter configured for the wrong liquid density reports the wrong level. Foam, tank obstructions or unsuitable mounting can produce unstable non-contact readings. A probe may work in a clean test tank but behave differently in the buyer's process. Approve a sample against the actual installation conditions before agreeing bulk acceptance.

Leaks often start at cable entries, seals or incompatible process connections. Incorrect output scaling makes a working instrument appear faulty at the control panel. Certificates may cover a different model or hazardous-area configuration. Hold release until the delivered configuration and supporting documents match the order.

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 liquid level transmitters from China?

The selected liquid level, electronic pressure and parts lines carry 0% duty, with no recorded anti-dumping or countervailing duty in the supplied tariff data.

Which commodity code covers an electronic liquid level transmitter?

9026 10 29 00 is the electronic liquid level line. Confirm the measuring function: a hydrostatic pressure probe may require assessment against the electronic pressure line.

What should I specify for a tank level transmitter?

Specify the liquid, density variation, tank geometry, range, temperature, pressure, foam and obstructions, then agree the measuring principle, connection, wetted materials and output.

Can I use a standard transmitter in an explosive atmosphere?

Do not assume suitability. For equipment intended for potentially explosive atmospheres, confirm the applicable regulations with the relevant authority. Check the certificate, equipment category and protection marking against the model and location.

Sources

  1. UK Trade Tariff — commodity codes and duty
  2. Electromagnetic Compatibility Regulations: Great Britain guidance
  3. Controls on mercury added products
  4. Restriction of hazardous substances guidance
  5. Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations

Monthly email

What changed for UK buyers from China, and when to act

One email at the start of each month. Every figure has an official source.

One email a month. Unsubscribe with one click. Privacy

Discuss your sourcing project

Tell us the product, quantity and destination. Our own staff in China verify factories, follow production and inspect before shipment. We reply the same working day to confirm receipt and arrange next steps.

Discuss your sourcing project
Get a quote