Product classification
HS code for Thermometer probes: 9025.90
Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers, recording or not, any combination of these instruments, parts and accessories.
Classification of thermometer probes under HS 9025.90
Thermometer probes, when imported or exported separately from the main measuring instrument, are classified under HS code 9025.90. This code is designated for parts and accessories of the instruments falling under heading 9025, which includes thermometers, pyrometers, barometers, and hygrometers. According to Note 2(b) to Chapter 90, parts and accessories that are suitable for use solely or principally with a particular kind of instrument are classified with that instrument. Since a probe is an essential component that detects temperature and transmits the signal to the display unit, it is considered a part or accessory. This classification covers various types of probes, such as thermocouples, thermistors, or resistance temperature detectors (RTDs), provided they are configured specifically as accessories for 9025 instruments and are not general-purpose electrical resistors or sensors classified elsewhere.
- Covers
- Digital thermometer replacement probes
- Thermocouple probes for pyrometers
- Resistance temperature detector (RTD) probes
- Stainless steel food temperature probes
- Immersion probes for liquid thermometers
- Surface temperature probes
- Also under 9025.90
- Davis Instruments Anemometer Replacement
- Extech RH300-P Temperature/Humidity Probe
- Kestrel Replacement Impeller
- Omega Engineering Thermocouple Probes
- Vaisala HMP155 Humidity and Temperature Probe
Codes often confused with 9025.90
Common mistake. Probes are often misclassified under 9025.19 (other thermometers) if the customs officer views them as incomplete instruments. They may also be incorrectly placed in 8533.40 if they are seen merely as variable resistors (thermistors) without the housing or connectors that characterize them as thermometer accessories.
Top exporters and importers of HS 902590 (the code used for thermometer probes), 2025
In 2025, the largest exporter of HS 902590 (the code used for thermometer probes) in UN Comtrade data was Germany, with 11% of world exports; the largest importer in UN Comtrade data was China, with 11% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 902590, not only thermometer probes.
Top exporters 2025 · share of world exports
- 1 Germany $198M 11% of world exports
- 2 China $182M 10% of world exports
- 3 Japan $170M 9.4% of world exports
World total: $1.8B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $192M 11% of world imports
- 2 Japan $116M 6.8% of world imports
- 3 United States $111M 6.5% of world imports
World total: $1.7B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for thermometer probes
Brazil splits HS 9025.90 into 2 NCM codes. Pick the one that matches your product:
- 9025.90.10Parts and accessories of thermometers
- 9025.90.90Parts and accessories of hydrometers and similar
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about thermometer probes
What is the HS code for Thermometer probes?
The HS code for Thermometer probes is 902590 (Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers; recording or not, any combination of these instruments, parts and accessories). Thermometer probes are classified as parts and accessories under HS code 9025.90.
How do I classify Thermometer probes for customs?
Thermometer probes is classified under HS code 902590 — Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers; recording or not, any combination of these instruments, parts and accessories. This is a 6-digit subheading level code.
Does this code include the digital display unit?
No, if the probe is sold with the display unit as a complete set, the entire system is usually classified under 9025.19.
Which countries are the top exporters of thermometer probes (HS 902590)?
In 2025, the top exporters of HS 902590 (the code used for thermometer probes) in UN Comtrade data were Germany ($198M, 11% of world exports), China ($182M) and Japan ($170M). World exports came to about $1.8B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of thermometer probes (HS 902590)?
In 2025, the top importers of HS 902590 (the code used for thermometer probes) in UN Comtrade data were China ($192M, 11% of world imports), Japan ($116M) and the United States ($111M). World imports came to about $1.7B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Thermometer probes the same in all countries?
The base HS code 902590 for Thermometer probes is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for thermometer probes in Brazil?
Brazil splits HS 902590 into 2 NCM codes, so the right one for thermometer probes depends on the product's details: 9025.90.10 (Parts and accessories of thermometers), 9025.90.90 (Parts and accessories of hydrometers and similar).