Find HS Code and trade information for anemometer

An anemometer is a meteorological instrument used to measure wind speed and wind direction. It is a common device at weather stations and is also used in handheld form for applications such as sailing, kite flying, and HVAC testing.

Material

Anemometers are constructed from a variety of materials depending on their application and accuracy requirements.

• Cups: Traditionally made of hemispherical cups, these are often constructed from stainless steel, aluminum, or durable plastics like polycarbonate or ABS. Stainless steel is favored for its corrosion resistance and longevity in outdoor environments.
• Frame & Housing: Materials include aluminum, plastic, and composites. Weather resistance and lightweight construction are key considerations.
• Axle & Bearings: Stainless steel is common for the axle. Bearings can be jewel bearings for high precision or simpler sleeve bearings for less demanding applications.
• Electronics (Digital Anemometers): Circuit boards, microprocessors, and displays are housed within a protective casing, typically plastic.

Purpose

The primary purpose of an anemometer is to provide quantitative measurements of wind conditions. These measurements are crucial for:

• Weather Forecasting: Data is used in models to predict weather patterns.
• Climate Monitoring: Long-term wind data contributes to understanding climate trends.
• Engineering: Used in structural design (e.g., bridge supports, building stability) to determine wind loads.
• Aviation: Essential for safe takeoffs and landings.
• Sailing & Wind Energy: Used to optimize sail trim and assess wind resource potential.
• HVAC (Heating, Ventilation, and Air Conditioning): Used to measure airflow in ducts and vents for system performance evaluation.

Function

Anemometers operate on various principles, but the most common method relies on rotational speed.

• Cup Anemometers: These consist of three or more hemispherical cups mounted on arms that rotate freely around a vertical axis. Wind catches the cups, causing them to spin. The faster the wind speed, the faster the cups rotate. A counter or electronic sensor measures the rotational speed, which is then converted into wind speed units (e.g., miles per hour, kilometers per hour, knots, meters per second).
• Vane Anemometers (Propeller Anemometers): These use a propeller that rotates due to wind. The rotational speed is proportional to wind speed. Often used for measuring wind speed in ducts or vents.
• Hot-Wire Anemometers: These measure wind speed by detecting the cooling effect of airflow on a heated wire. They are highly sensitive and are used for precise measurements of low wind speeds.
• Sonic Anemometers: These use ultrasonic sound waves to measure wind speed and direction. They are very accurate and have no moving parts.

Usage Scenarios

• Weather Stations: Continuous monitoring of wind speed and direction.
• Sailing/Boating: Assessing wind conditions for navigation and racing.
• Kite Flying: Determining suitable wind conditions for flying kites.
• Wind Turbines: Monitoring wind resources and optimizing turbine performance.
• HVAC Systems: Measuring airflow in ducts to ensure proper ventilation.
• Firefighting: Assessing wind direction to predict fire spread.
• Scientific Research: Collecting wind data for climate studies and atmospheric research.
• Drone Operation: Assessing wind conditions for safe flight.

Common Types

• Cup Anemometers: The most traditional and widely used type. Relatively inexpensive and reliable.
• Vane Anemometers: Portable and easy to use, often used for spot measurements.
• Digital Anemometers: Provide digital readings and often include features such as data logging and wind chill calculation.
• Hot-Wire Anemometers: Used for precise measurements of low wind speeds.
• Sonic Anemometers: Highly accurate and reliable, but more expensive.
• Handheld Anemometers: Compact and portable for field use.
• Wireless Anemometers: Transmit data wirelessly to a base station.

Anemometers are instruments used for measuring wind speed and are categorized within measuring instruments.

Here are the relevant HS codes based on the provided reference material:

• 9026804000: This HS code falls under Chapter 90, which covers Instruments and apparatus for measuring or checking. Specifically, it covers instruments for measuring or checking liquids or gases, excluding those in headings 9014, 9015, 9028 or 9032. The subheading 9026804000 specifically refers to other instruments and apparatus, and further defines it as heat meters incorporating liquid supply meters, and anemometers. The tax rate details indicate a base tariff of 0.0%, an additional tariff of 25.0%, and a tariff of 30.0% after April 2, 2025, resulting in a total tariff of 55.0%.

Regarding HS code 9026804000, it is important to note that this code specifically covers heat meters incorporating liquid supply meters, alongside anemometers. Therefore, ensure the anemometer is not part of a larger heat meter system if classifying under this code.