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US Standard Industrial Classification (SIC) Code Lookup

Division: D - Manufacturing

US-SIC Code 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals

Industry Description

Establishments primarily engaged in manufacturing instruments for measuring the characteristics of electricity and electrical signals, such as voltmeters, ammeters, wattmeters, watt-hour meters, demand meters, and equipment for testing the electrical characteristics of electrical, radio, and communication circuits and of internal combustion engines. Establishments primarily engaged in the manufacturing of electronic checkout, monitoring, evaluating, and other electronic support equipment for electronic navigational, radar, and sonar systems are classified in Industry 3812, and those manufacturing similar equipment for communications systems classified in Industry Group 366.

Business Examples

Common types of business activities within US SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals are:

  • Alternator and generator testers
  • Ammeters
  • Ampere-hour meters
  • Analog-to-digital converters, electronic instrumentation type
  • Analyzers for testing electrical characteristics
  • Audiometers, except medical
  • Automotive ammeters and voltmeters
  • Battery testers, electrical
  • Bleed control cabinets (engine testers)
  • Bridges, electrical: e.g., Kelvin, Wheatstone, vacuum tube, and
  • Current measuring equipment
  • Decade boxes: capacitance, inductance, and resistance
  • Demand meters, electric
  • Digital panel meters, electricity measuring
  • Digital test equipment, electronic and electrical circuits and equipment
  • Digital-to-analog converters, electronic instrumentation, type
  • Diode and transistor testers
  • Distortion meters and analyzers
  • Elapsed time meters, electronic
  • Electron tube test equipment
  • Electronic test equipment for testing electrical characteristics
  • Energy measuring equipment, electrical
  • Field strength and intensity measuring equipment, electrical
  • Frequency meters: electrical, mechanical, and electronic
  • Frequency synthesizers
  • Function generators
  • Galvanometers, except geophysical
  • Ignition testing instruments
  • Impedance measuring equipment
  • Indicating instruments, electric
  • Instrument relays, all types
  • Instrument shunts
  • Instruments for measuring electrical quantities
  • Instruments, electric: for testing electrical characteristics
  • Integrated-circuit testers
  • Integrating electricity meters
  • Internal combustion engine analyzers, to test electrical characteristics
  • Laboratory standards, electric: resistance, inductance, and capacitance
  • Logic circuit testers
  • Measuring equipment for electronic and electrical circuits and
  • Measuring instruments and meters, electric
  • Meters, electric: pocket, portable, panelboard, and graphic recording
  • Meters, power factor and phase angle
  • Microwave test equipment
  • Multimeters
  • Network analyzers
  • Ohmmeters
  • Oscillators, audio frequency and radio frequency (instrument types)
  • Oscillographs and oscilloscopes
  • Potentiometric instruments, except industrial process type
  • Power measuring equipment, electrical
  • Pulse (signal) generators
  • Radar testing instruments, electric
  • Radio apparatus analyzers for testing electrical characteristics
  • Radio frequency measuring equipment
  • Radio set analyzers, electrical
  • Radio tube checkers, electrical
  • Recorders, oscillographic
  • Reflectometers, sliding shorts
  • Resistance measuring equipment
  • Semiconductor test equipment
  • Signal generators and averages
  • Spark plug testing instruments, electric
  • Spectrum analyzers
  • Standard cells
  • Standards and calibration equipment for electrical measuring, except
  • Standing wave ratio measuring equipment
  • Stroboscopes
  • Sweep generators
  • Sweep oscillators
  • Synchroscopes
  • Tachometer generators
  • Test equipment for electronic and electrical circuits and equipment
  • Test sets, ignition harness
  • Time code generators
  • Transformers, instrument: portable
  • Tube testers
  • Voltmeters
  • Volt-ohm milliammeters
  • Watt-hour and demand meters, combined
  • Watt-hour and time switch meters, combined
  • Watt-hour meters, electric
  • Wattmeters
  • Waveform measuring and/or analyzing equipment

IBISWorld Industry Research Report

Communications Equipment Manufacturing in the US (33422)

Revenue 2025

$36.1bn

Growth 2025

0.10%

Key Trends

  • Operators have offshored less-profitable manufacturing activities to countries with lower production costs and less regulation

  • Economic growth and technological change have driven demand for industry products

  • The number of industry operators is anticipated to decline in line with revenue

Products and Services

US-SIC Hierarchy 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals

US-SIC Code 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals sits in the 2-digit Instruments for Measuring and Testing of Electricity and Electrical Signals sector. US SIC codes can be 2 to 8 digits and the further along the hierarchy, the more detailed and specific the category will be.

Division: D

Division Title: Manufacturing

2 Digits 3 Digits 4 Digits

Extended US-SIC Hierarchy for 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals

For business marketing and targeting, US SIC Codes have been extended to provide more specific classifications within US-SIC 3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals. Extended US SIC Codes are being continuously updated to reflect the current business environment.

6 Digit SIC Codes

  • 382501 Recording instruments ind/scientfc-mfrs
  • 382503 Calibration devices (manufacturers)
  • 382504 Automobile diagnostic service equip-mfrs
  • 382505 Instruments-measuring (manufacturers)
  • 382598 Instrs-measuring/testing elec (mfrs)

8 Digit SIC Codes

  • 38250000 Instruments to measure electricity
  • 38250100 Engine electrical test equipment
  • 38250101 Alternator and generator testers
  • 38250102 Automotive ammeters and voltmeters
  • 38250103 Battery testers, electrical
  • 38250104 Bleed control cabinets (engine testers)
  • 38250105 Digital test equipment, electronic and electrical circuits
  • 38250106 Ignition testing instruments
  • 38250107 Internal combustion engine analyzers, to test electronics
  • 38250108 Spark plug testing equipment, electric
  • 38250109 Test sets, ignition harness
  • 38250200 Test equipment for electronic and electric measurement
  • 38250201 Analog-digital converters, electronic instrumentation type
  • 38250202 Analyzers for testing electrical characteristics, nec
  • 38250203 Audiometers
  • 38250204 Bridges: Kelvin, Wheatstone, vacuum tube, megohm, etc.
  • 38250205 Decade boxes: capacitance, inductance, and resistance
  • 38250206 Digital panel meters, electricity measuring
  • 38250207 Diode and transistor testers
  • 38250208 Distortion meters and analyzers
  • 38250209 Electron tube test equipment
  • 38250210 Frequency synthesizers
  • 38250211 Function generators
  • 38250212 Impedance measuring equipment
  • 38250213 Instrument relays, all types
  • 38250214 Instrument shunts
  • 38250215 Integrated circuit testers
  • 38250216 Lab standards, electric: resistance, inductance, capacitance
  • 38250217 Logic circuit testers
  • 38250218 Microwave test equipment
  • 38250219 Network analyzers
  • 38250220 Pulse (signal) generators
  • 38250221 Radar testing instruments, electric
  • 38250222 Radio apparatus analyzers, nec
  • 38250223 Radio set analyzers, electrical
  • 38250224 Radio tube checkers, electrical
  • 38250225 Reflectometers, sliding shorts
  • 38250226 Semiconductor test equipment
  • 38250227 Shunts, electrical
  • 38250228 Signal generators and averagers
  • 38250229 Spectrum analyzers
  • 38250230 Standard cells
  • 38250231 Standards and calibrating equipment, laboratory
  • 38250232 Standards and calibration equipment for electrical measuring
  • 38250233 Sweep generators
  • 38250234 Synchroscopes
  • 38250235 Tachometer generators
  • 38250236 Test equipment for electronic and electrical circuits
  • 38250237 Time code generators
  • 38250238 Transducers for volts, amperes, watts, vars, frequency, etc.
  • 38250239 Transformers, portable: instrument
  • 38250240 Tube testers
  • 38250241 Waveform measuring and/or analyzing equipment, nec
  • 38250242 X-Y recorders (plotters), except computer peripheral equip.
  • 38250300 Electrical energy measuring equipment
  • 38250301 Ammeters, nec
  • 38250302 Ampere-hour meters
  • 38250303 Current measuring equipment, nec
  • 38250304 Demand meters, electric
  • 38250305 Electrical power measuring equipment
  • 38250306 Energy measuring equipment, electrical
  • 38250307 Field strength and intensity measuring equipment, electrical
  • 38250308 Frequency meters: electrical, mechanical, and electronic
  • 38250309 Galvanometers
  • 38250310 Instruments for measuring electrical quantities
  • 38250311 Integrating electricity meters
  • 38250312 Measuring instruments and meters, electric
  • 38250313 Meters, power factor and phase angle
  • 38250314 Meters: electric, pocket, portable, panelboard, etc.
  • 38250315 Multimeters
  • 38250316 Ohmmeters
  • 38250317 Oscillators, audio and radio frequency (instrument types)
  • 38250318 Oscillographs and oscilloscopes
  • 38250319 Potentiometric instruments, except industrial process type
  • 38250320 Power measuring equipment, electrical
  • 38250321 Radio frequency measuring equipment
  • 38250322 Recorders, oscillographic
  • 38250323 Resistance measuring equipment
  • 38250324 Standing wave ratio measuring equipment
  • 38250325 Stroboscopes
  • 38250326 Sweep oscillators
  • 38250327 Volt meters
  • 38250328 Volt-ohm milliammeters
  • 38250329 Watt-hour and demand meters, combined
  • 38250330 Watt-hour and time switch meters, combined
  • 38250331 Watt-hour meters, electrical
  • 38250332 Wattmeters
  • 38259900 Instruments to measure electricity, nec
  • 38259901 Elapsed time meters, electronic
  • 38259902 Indicating instruments, electric

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US SIC Code Directory

Each US SIC Code is part of a Division, which corresponds with a numerical range. Select a Division category from the table below, then drill down to discover the industries within that Division.

Division US-SIC Code Sector title
A 01-09 Agriculture, Forestry, and Fishing
B 10-14 Mining
C 15-17 Construction
D 20-39 Manufacturing
E 40-49 Transportation, Communications, Electric, Gas, and Sanitary Services
F 50-51 Wholesale Trade
G 52-59 Retail Trade
H 60-67 Finance, Insurance, and Real Estate
I 70-89 Services
J 90-99 Public Administration

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