Pressure Gauge HSN Code: Understanding the Classification for Digital and Industrial Gauges

Updated: Jun 3, 2026 12 min read Nishant

Pressure gauges and pressure testing instruments are widely used in factories, pipelines and service centres. Under GST, these instruments must be billed with the correct HSN code so that GST rate, input tax credit and export benefits are applied correctly.

This guide explains how digital and industrial pressure gauges are classified, how GST rate is linked to their HSN code and why clear classification matters for business.

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The HSN Code for Digital Pressure Gauges

Digital pressure gauges show pressure readings using an electronic display. They may also store readings or send them to a control system. Even then, their main function is measurement of pressure. Under the customs and GST tariff, instruments for measuring or checking the flow, level or pressure of liquids and gases are grouped under a common instruments heading. Digital pressure gauges generally fall in this family along with many industrial gauges.

Common HSN codes for pressure gauges and related items are shown in the table below.

Pressure Gauge HSN Code Classification and GST Rates

Here are some commonly used HSN codes and GST rates for this category

Section Classification

Section No

Section Title

Guide to HSN Section 18

Section Description

Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical Or Surgical Instruments And Apparatus; Clocks And Watches; Musical Instruments; Parts And Accessories Thereof

Chapter Classification

Chapter No

Chapter Title

Optical & Medical Instruments

Chapter Description

Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof

4 Digit HSN Code Classification

HSN Code

HSN Code Title

Liquids or Gas Measuring Instruments

GST Rate

18%

8 Digit HSN Code Classification

HSN Code

HSN Code Title

Flow meters

GST Rate

18%

HSN Code

HSN Code Title

For measuring or checking the flow or level of liquids: Level gauges

GST Rate

18%

HSN Code

HSN Code Title

Measuring or checking liquid flow/level

GST Rate

18%

HSN Code

HSN Code Title

Measuring or checking pressure

GST Rate

18%

HSN Code

HSN Code Title

Other instruments or apparatus : Heat meters

GST Rate

18%

HSN Code

HSN Code Title

Other Instruments Or Apparatus | Other

GST Rate

18%

HSN Code

HSN Code Title

Parts And Accessories

GST Rate

18%

* GST rates may vary based on the latest GST notifications.

Industrial Pressure Gauges and Their Tax Classification

Industrial gauges are fitted on boilers, air receivers, hydraulic machines and many other systems. These gauges can be dial type, capsule type or digital. All such gauges are normally classified along with other pressure measuring instruments. For imported gauges, the same HSN code drives customs duty and any safeguard duty. This makes it important for traders to choose the correct classification before quoting prices or signing contracts.

Importance of HSN Codes in Pressure Testing Equipment

Pressure testing equipment like test benches and leak testing rigs may include pumps, gauges, valves and control units. For classification, you must see what gives the equipment its main character. If the main function is measurement, it can fall under the measuring instruments heading. If the main function is pumping or compressing, it may fall under the pumps or compressors chapter. Correct HSN code helps in deciding not only GST rate but also whether the buyer can claim input tax credit as capital goods or as test instruments. This has a direct impact on project costing.

Conclusion

Pressure gauges, whether analogue or digital, are usually classified under the measuring instruments heading. The same heading also covers many flow and level measuring devices. Once you fix the correct HSN code for pressure gauges and testing equipment, you can map it in your billing and ERP so that GST rate, input tax credit and customs duty are handled correctly in every transaction.

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Frequently Asked Questions

Clear answers to common queries about this topic.

What is the HSN code for digital pressure gauges

Digital pressure gauges are normally grouped with other pressure measuring instruments in the same HSN family. The exact code may depend on the detailed description in the tariff.

How are industrial pressure gauges classified under HSN?

Industrial pressure gauges that simply indicate pressure are usually classified along with other measuring instruments. Special instruments that also control processes may need a closer review of the tariff notes.

Does HSN code impact pressure testing equipment?

Yes, HSN code decides GST rate, customs duty and treatment as capital goods. A correct code helps in planning project cost and claiming input tax credit.

Are mechanical and digital gauges given different GST rates?

In most cases both mechanical and digital gauges fall under the same heading and attract the same GST rate. You should still check the latest rate notification to confirm.

Why is HSN classification important for suppliers of gauges?

Correct classification builds trust with customers, avoids disputes with tax officers and supports smooth audits. It also ensures that export and import procedures match the tariff description.

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Nishant

Chartered Accountant

I am a Chartered Accountant with more than five years of experience in the accounting field. My areas of expertise include GST, income tax, and audits. I am passionate about sharing knowledge through blogs and articles, as I believe that learning is a lifelong journey. My goal is to provide valuable insights and simplify financial matters for individuals and business owners alike.

MRN: 445516 Delhi