HS Code for Tachometer sensors

Tachometer sensors are classified under HS code 9029.90 because they are identified as parts and accessories for the instruments of heading 9029. Heading 9029 covers revolution counters, production counters, taximeters, mileometers, pedometers, and speed indicators or tachometers. According to the General Rules of Interpretation (GRI) and the Chapter Notes for Chapter 90, parts that are suitable for use solely or principally with a particular kind of machine or instrument are classified with those machines. Since these sensors are dedicated components designed to provide input signals specifically for tachometers or speed indicators, they fall under the "parts and accessories" subheading 9029.90. This classification applies regardless of the sensor's technology—whether magnetic, optical, or inductive—provided they are not excluded by Note 2 to Chapter 90 or specifically mentioned in other headings. The sensor acts as the primary sensing element that detects rotational speed and converts it into an electrical signal for the display unit, making it an integral part of the tachometer system.

Products Included

• Magnetic pickup sensors for tachometers
• Hall effect speed sensors
• Optical tachometer sensors
• Inductive proximity sensors for revolution counting
• Gear tooth sensors for speed measurement
• Variable reluctance sensors

Common Misclassification

Tachometer sensors are frequently confused with complete tachometers under HS code 9029.20. The distinction lies in whether the item is a standalone measuring instrument or a component. Additionally, they are often misclassified under 8543.70, which covers electrical machines and apparatus having individual functions, or 9031.80, which covers other measuring or checking instruments. If the sensor is a simple semiconductor device without further circuitry, it might be incorrectly placed in 8541.40. However, if it is specifically designed for a tachometer, 9029.90 is the correct designation.

FAQ

What is the HS code for tachometer sensors?

The HS code for tachometer sensors is 9029.90, as they are classified as parts and accessories of revolution counters and speed indicators.

Can a general-purpose proximity sensor be classified under 9029.90?

Generally, no. If a sensor is for general use and not specifically designed for a tachometer, it may be classified under 8536 or 9031 depending on its technical characteristics and function.