HTS Heading 9025

Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof

All 14 HTS codes under heading 9025 (hydrometers), with their duty rates from the 2026 HTS Revision 23. General duty Free to 2.9%.

Every line of heading 9025

  • 9025 Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof.
  • 9025.11 Liquid-filled, for direct reading.
  • 9025.11.20.00 Clinical (under: Liquid-filled, for direct reading) (No.): General Free; Special none; Column 2 85%.
  • 9025.11.40.00 Other (under: Liquid-filled, for direct reading) (No.): General Free; Special none; Column 2 85%.
  • 9025.19 Other (under: Thermometers and pyrometers, not combined with other instruments).
  • 9025.19.40.00 Pyrometers (under: Other) (No.): General Free; Special none; Column 2 45%.
  • 9025.19.80 Other (under: Other): General Free; Special none; Column 2 40%.
  • 9025.19.80.10 Infrared thermometers of a kind described in statistical note 2 of this chapter (No.).
  • 9025.19.80.20 Other (under: Clinical) (No.).
  • 9025.19.80.60 Infrared thermometers (under: Other) (No.).
  • 9025.19.80.85 Other (under: Other) (No.).
  • 9025.80 Other instruments (under: Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof).
  • 9025.80.10.00 Electrical (under: Other instruments) (No.): General 1.7%; Special Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 9025.80.15.00 Barometers, not combined with other instruments (No.): General 1%; Special Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 9025.80.20.00 Hydrometers and similar floating instruments, whether or not incorporating a thermometer, non-recording (No.): General 2.9%; Special Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 85%.
  • 9025.80.35.00 Hygrometers and psychrometers, non-recording (No.): General 1.4%; Special Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 45%.
  • 9025.80.40.00 Thermographs, barographs, hygrographs and other recording instruments (No.): General 1%; Special Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 9025.80.50.00 Other (under: Other) (No.): General 1.6%; Special Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 50%.
  • 9025.90.06.00 Parts and accessories (under: Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof) (kg): General Free; Special none; Column 2 The rate applicable to the article of which it is a part or accessory.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.

Last reviewed 2026-11-12.