| 90 | Optical instruments and apparatus, photographic, cinematographic, measuring, checking, precision, medical or surgical; parts and accessories |
| 9025 | Hydrometers and similar devices operating when immersed liquid, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording device, or without a recording device, and any combination of these instruments |
| 902519 | Other thermometers and pyrometers, not united with other devices |
| 90251980 | Thermometers and pyrometers, not combined with other instrument: other |
| 9025198009 | Other thermometers and pyrometers, not united with other devices |