HS Code for Monochrome monitor tube

Monochrome monitor tubes are classified under HS code 8540.12. This code falls within Chapter 85, which covers electrical machinery and equipment. Heading 8540 is specifically designated for thermionic, cold cathode, or photo-cathode tubes, including vacuum tubes and cathode-ray tubes (CRTs). Subheading 8540.12 is reserved for monochrome video monitor cathode-ray tubes, including those used for television receivers. The classification is determined by the functional technology of the component—specifically, the use of an electron beam to excite phosphors on a screen to create a single-color image. Despite the global shift toward flat-panel displays, these components remain distinct in the Harmonized System. The classification applies to the tube as a component, not the entire monitor assembly. It includes tubes used in specialized industrial displays, legacy computer monitors, and medical imaging equipment that relies on high-resolution monochrome CRT technology.

Products Included

• Black and white television picture tubes
• Monochrome CRT display tubes
• High-resolution monochrome monitor tubes
• Radar display cathode-ray tubes
• Oscilloscope tubes (monochrome)

Common Misclassification

Monochrome monitor tubes are often confused with color cathode-ray tubes, which are classified under 8540.11. They are also frequently misclassified under 8528.52 or 8528.59, which are the codes for complete monitors rather than the individual tubes. Additionally, liquid crystal display (LCD) or light-emitting diode (LED) modules are classified under 8524, as they do not utilize vacuum tube technology.

FAQ

What is the HS code for a monochrome monitor tube?

The specific HS code for a monochrome cathode-ray monitor tube is 8540.12.

Are medical monochrome displays covered here?

If the item is the individual cathode-ray tube used in a medical display, it falls under 8540.12. However, if it is a complete medical monitor, it may be classified under 9018 or 8528 depending on its configuration.