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Sensor HSN Code: Classification for Electronic and Industrial Sensors

Sensors are used in many applications such as factory automation, process control, building management, security systems and consumer electronics. They measure or detect parameters like motion, temperature, pressure, light, distance and presence. Under GST, sensors are classified based on their function and the type of instrument or apparatus in which they are used. Getting the sensor HSN code right is essential for manufacturers, traders and system integrators.

HSN classification for sensors can sometimes be complex because different kinds of sensors fall under different chapters. For example, some motion sensors are treated as electrical signalling equipment, while process control sensors may be classified as measuring or checking instruments. Taxpayers should therefore understand the broad logic of classification instead of using a single sensor HSN code for all products.

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What is the HSN Code for Motion Sensors?

Motion sensors used in security systems, lighting control and smart homes are often supplied as part of an electronic signalling system. Depending on their design, these products can fall under headings for electrical signalling, alarm equipment or measuring instruments. For stand alone motion sensors sold as parts, classification usually follows the heading for the complete apparatus in which they are principally used.

Because technology is evolving, taxpayers should cross check the technical description of their motion sensor with the wording in the customs tariff and explanatory notes. A simple passive infrared motion sensor used in lighting may be classified differently from a complex industrial detection module.

What is the HSN Code for Sensors?

There is no single universal sensor HSN code that applies to every type of sensor. Instead, the code depends on whether the sensor is primarily a measuring instrument, a control device, a part of an electrical signalling system or an element of a larger machine. Chapters that frequently cover sensors include chapters for electrical machinery, measuring and checking instruments and automatic regulating instruments.

For example, a temperature sensor used in industrial process control may be classified together with other temperature measuring devices, while a simple proximity sensor for elevators or doors may fall under electrical apparatus used for switching or protecting circuits. The exact classification should be decided with the help of detailed technical specifications.

How Industrial Sensors Are Classified under HSN?

Industrial sensors such as pressure transmitters, flow sensors, level sensors and proximity switches are usually part of a wider control system. In such cases, the classification takes into account whether the sensor performs a measuring function, a control function or both. Sensors that form part of an automatic regulating or controlling device may be classified under the heading for automatic regulating instruments.

Where sensors are clearly identifiable as parts of a specific machine, they may be classified as parts of that machine, provided the tariff allows such treatment. For instance, a sensor that is specially designed and used only with a certain type of industrial robot may be treated as a part of that robot.

The HSN Code for Motion Sensors

Motion sensors used in burglar alarms, security systems and access control may fall under headings relating to signalling, safety or alarm equipment. When supplied as a complete unit with housing, circuitry and output terminals, they are treated as finished apparatus. When supplied as bare sensor modules, classification as parts or components may be examined.

Businesses importing or exporting motion sensors should ensure that invoices, packing lists and technical sheets clearly describe the product so that the customs officer can verify the classification. Clear documentation helps avoid delays and disputes at the time of clearance.

GST and Sensor Products

GST on sensor products follows the rate prescribed for the relevant HSN heading. Many electronic and industrial instruments fall under the standard goods rate, but there can be exceptions based on government notifications. Therefore, taxpayers must not assume a single GST rate for all sensors. Instead, they should verify the correct rate for each category of sensor they sell.

Proper sensor HSN classification also ensures correct reflection in e way bills, e invoices and GST returns. When HSN codes in purchase invoices and sales invoices align, input tax credit flow becomes smoother and reconciliation in GSTR 2B and GSTR 3B is easier.

Shoes 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 Section Description
16 Guide to HSN Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT AND PARTS THEREOF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORDERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES
18 Guide to HSN Section 18 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 Chapter Description
85 Electrical Machinery Equipment Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles
90 Optical & Medical Instruments 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 GST Rate
8536 Circuit switching apparatus 18%
8543 Electrical machines 18%
9025 Thermometers, Barometers, Hygrometers 18%
9026 Liquids or Gas Measuring Instruments 18%
9027 Analytical Instruments 18%
9030 Radiation detectors 18%
9031 Measuring or Checking Instruments 18%
9032 Automatic regulating instruments 18%

8 Digit HSN Code Classification

HSN Code HSN Code Title GST Rate
85361010 Fuses: Rewireable (<15 amps) 18%
85361020 High Rupturing Capacity/Rewireable Fuses (>15 Amps Switches) 18%
85361030 Other rewireable fuses 18%
85361040 Other high rupturing capacity fuses 18%
85361050 Fuses : Fuses gear 18%
85361060 Fuses : Electronic fuses 18%
85361090 Fuses : Other 18%
85362010 Automatic circuit breakers: Air circuit breakers 18%
85362020 Moulded case circuit breakers 18%
85362030 Miniature circuit breakers 18%
85362040 Earth leak circuit breakers 18%
85362090 Other Automatic Circuit Breakers 18%
85363000 Electrical circuit protection apparatus 18%
85364100 Pocket Lighters, Gas Fuelled, Refillable 18%
85364900 Relays 18%
85365010 Other Switches| Control/Switch Gears 18%
85365020 Switches| Plastic 18%
85365090 Other Switches 18%
85366110 Plastic lamp-holders 18%
85366190 Lamp-holders of other materials 18%
85366910 Plugs and sockets 18%
85366990 Lamp-holders, plugs 18%
85367000 Connectors for optical fibres/cables 18%
85369010 Other apparatus : Motor starters for AC motors 18%
85369020 Other apparatus : Motor starters for DC motors 18%
85369030 Other Apparatus | Junction Boxes 18%
85369090 Other Apparatus | Other 18%
85431010 Ion Implanters for Semiconductor Doping 18%
85431020 Particle accelerators 18%
85431030 Particle accelerators 18%
85431090 Particle accelerators: Other including cyclotrons 18%
85431100 Vane Graff/Cock-Croft/Walton Accelerators 18%
85431910 Synchrocyclotrons/Synchrotrons 18%
85431920 Other Particle Accelerators (incl. Cyclotrons) 18%
85431990 Proximity Cards and Tags 18%
85432010 Signal Generators | Sweep Generators 18%
85432020 Signal Generators | Impulse Generators 18%
85432030 Signal generators : Tacho generators 18%
85432090 Signal Generators | Other 18%
85433000 Electroplating, Electrolysis & Electrophoresis Machines 18%
85434000 E-cigarettes & vaporizing devices 18%
85437011 Proximity cards and tags 18%
85437012 Other machines and apparatus: Metal detector 18%
85437013 Other machines and apparatus: Mine detector 18%
85437019 Other Machines And Apparatus| Other 18%
85437021 Digital Reverberators 18%
85437022 Mixing System/Consoles (Audio) 18%
85437029 Audio special effect equipment 18%
85437031 Video Mixing System/Consoles 18%
85437032 Video Effect System 18%
85437033 Video Effect Systems 18%
85437034 Video Special Effect Equipment: Paint Box 18%
85437035 Video Special Effect Equipment: Video Typewriters 18%
85437036 Video Matting Machine 18%
85437039 Video Special Effect Equipment: Other 18%
85437041 Multi-Edit Control Unit (>3) 18%
85437042 Other Video Control Units: Edit Control Unit 18%
85437049 Edit control units 18%
85437050 Other machines and apparatus: Colour corrector 18%
85437061 Broadcast amplifier 18%
85437062 Video Amplifier 18%
85437069 Other machines and apparatus: Amplifier: Other 18%
85437071 Graphic Equalizers 18%
85437072 Synthesized Receivers 18%
85437091 RF Power Amplifiers/Noise Generators (Jamming) 18%
85437092 Solar-Powered Equipment & Gadgets 18%
85437093 Video Special Effects Equipment: Paint Box 18%
85437094 Audio visual stereo encoders 18%
85437095 Time code generator 18%
85437099 Machines/Apparatus 18%
85438100 Metal Detectors 18%
85438910 Mine Detectors 18%
85438920 Digital Reverb Audio Effect Equipment 18%
85438931 Mixing Systems/Consoles (Audio) 18%
85438932 Other Audio Special Effect Equipment 18%
85438939 Video Mixing Systems/Consoles 18%
85438941 Video Effect Systems 18%
85438942 Digital Layering Machines (Video) 18%
85438943 Paint Boxes (Video) 18%
85438944 Video Typewriters 18%
85438945 Video Matting Machines 18%
85438946 Other Video Special Effect Equipment 18%
85438949 Computerised Video Editing Systems (>3 Machines) 18%
85438951 Other Video Control Units 18%
85438952 Other Edit Control Units 18%
85438959 Colour Correctors 18%
85438960 Broadcast Amplifiers 18%
85438971 Limiting/Video Distribution/Stabilising Amplifiers 18%
85438972 Other Amplifiers 18%
85438979 Graphic Equalisers 18%
85438981 Synthesised Receivers 18%
85438982 RF Power Amplifiers/Noise Generators (Jamming Equipment) 18%
85438991 Solar Energy Based Equipment/Gadgets 18%
85438992 Professional Beauty Care Equipment 5%
85438993 Audio Video Stereo Encoders 18%
85438994 Time Code Generators 18%
85438995 Other Electrical Machines/Apparatus 18%
85438999 Dry Core Paper Insulated Telephone Cables (<= 80V, with connectors) 18%
85439000 Electric Conductors of Copper 18%
90251110 Clinical thermometers: TempCheck 18%
90251190 Hydrometers, Thermometers & Similar Instruments 18%
90251910 Digital Thermometers 18%
90251920 Pyrometers 18%
90251990 Other Thermometers/Pyrometers 18%
90258010 Hydrometers 18%
90258020 Barometers, not combined with others 18%
90258030 Other Instruments | Lactometer 18%
90258090 Other instruments : Other 18%
90259000 Parts And Accessories 18%
90261010 Flow meters 18%
90261020 For measuring or checking the flow or level of liquids: Level gauges 18%
90261090 Measuring or checking liquid flow/level 18%
90262000 Measuring or checking pressure 18%
90268010 Other instruments or apparatus : Heat meters 18%
90268090 Other Instruments Or Apparatus | Other 18%
90269000 Parts And Accessories 18%
90271000 Gas or smoke analysis apparatus 18%
90272000 Chromatographs & electrophoresis instruments 18%
90273010 Spectrometers 18%
90273020 Spectrophotometers 18%
90273090 Physical & Chemical Analysis Instruments 18%
90274000 Viscosity/Porosity/Expansion/Surface Tension Measuring Instruments 18%
90275010 Photometers 18%
90275020 Refractometers 18%
90275030 Polarimeters 18%
90275090 Other Optical Radiation Instruments 18%
90278010 Calorimeters 18%
90278020 Surface/Interfacial Tension Measuring Instruments 18%
90278030 Nuclear Magnetic Resonance (NMR) Instruments 18%
90278040 Other Physical/Chemical Analysis Instruments 18%
90278090 Ammeters, Volt Meters, Watt Meters 18%
90278100 Mass spectrometers 18%
90278910 Instruments: Viscometers 18%
90278920 Instruments: Calorimeters 18%
90278930 Liquid Surface Tension Instruments 18%
90278990 Other instruments and apparatus : Other: Other 18%
90279010 Microtomes & Parts 18%
90279020 PCA for Sub-heading 9027 80 18%
90279090 Microtomes| Accessories 18%
90301000 Instruments for Measuring or Detecting Ionising Radiations 18%
90302000 Oscilloscopes and oscillographs 18%
90303100 Other Frozen Fish (Croakers/Groupers/Flounders, excl. pre-packaged) 18%
90303200 Multimeters with Recorder 18%
90303310 Other Measuring Instruments (with Recorder) 18%
90303320 Other Measuring Instruments (No Recorder) 18%
90303330 Ammeters/Voltmeters/Wattmeters (No Recorder) 18%
90303340 Capacitance Meters (No Recorder) 18%
90303350 Megar Meters (No Recorder) 18%
90303390 Frequency Measuring Apparatus (No Recorder) 18%
90303900 Multimeters (No Recorder) 18%
90303910 Spectrum Resistance Meters 18%
90303920 Capacitance Meters 18%
90303930 Frequency Measuring Apparatus 18%
90303940 Mega Meters 18%
90303950 Other Electrical Measuring Apparatus 18%
90303990 Other Electrical Measuring Apparatus (with recording device) 18%
90304000 Spectrum Resistance Meters (No Recorder) 18%
90308200 Semiconductor Test Equip. 18%
90308300 Profile Projectors 18%
90308400 Recording instruments 18%
90308910 Scintillator counters: Instruments 18%
90308920 Instruments: Vectroscope 18%
90308990 Other instruments and apparatus : Other : Other 18%
90309010 Parts and accessories : Of meters and counters 18%
90309090 Parts and accessories : Other 18%
90311000 Machines For Balancing Mechanical Parts 18%
90312000 Test Benches 18%
90313000 Electrically Operated Wrist-Watches (Opto-Electronic Display) 18%
90314100 Nitrates & Phosphates (Non-Fertilizer) 18%
90314900 Other optical instruments and appliances : Other 18%
90318000 Instruments, appliances, machines 18%
90319000 Parts And Accessories 18%
90321010 Thermostats for Refrigerating & Air-Conditioning Appliances 18%
90321090 Thermostats | Other 18%
90322010 Manostats for Refrigeration & Air-Conditioning Applications 18%
90322090 Manostats | Other 18%
90328100 Hydraulic/pneumatic instruments 18%
90328910 Electronic Automatic Regulators and Other Instruments 18%
90328990 Other instruments and apparatus 18%
90329000 Parts And Accessories 18%

* GST rates may vary based on the latest GST notifications and amendments

Frequently Asked Questions

Is there one single HSN code for all sensors?

No. There is no single sensor HSN code that covers every type. The code depends on the function and design of the sensor and the instrument in which it is used.

How do I decide whether a sensor is a measuring instrument or a part?

If the sensor can work as an independent measuring device, it is often treated as an instrument. If it is designed mainly for use with a specific machine and has no standalone function, it may be treated as a part of that machine.

Do motion sensors for security systems and for lighting have the same HSN code?

Not always. Motion sensors used in security systems may follow the heading for alarm or signalling equipment, while those used in lighting may be treated as electrical control apparatus. The technical literature of the product must be studied.

How should I show sensor HSN code in GST invoices?

You should print the appropriate sensor HSN code on the tax invoice for every supply. The same code should flow into your e invoice, e way bill and GSTR 1 filings.

What if my product is a smart sensor with communication features?

Smart sensors that combine sensing, processing and communication may need deeper analysis. In such cases, you should compare possible headings and, if needed, consult a tax professional or seek an advance ruling to avoid future disputes.