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.
Alternator and generator testers | Meters, power factor and phase angle |
Ammeters | Microwave test equipment |
Ampere-hour meters | Multimeters |
Analog-to-digital converters, electronic instrumentation type | Network analyzers |
Analyzers for testing electrical characteristics | Ohmmeters |
Audiometers, except medical | Oscillators, audio frequency and radio frequency (instrument types) |
Automotive ammeters and voltmeters | Oscillographs and oscilloscopes |
Battery testers, electrical | Potentiometric instruments, except industrial process type |
Bleed control cabinets (engine testers) | Power measuring equipment, electrical |
Bridges, electrical: e.g., Kelvin, Wheatstone, vacuum tube, and megohm | Pulse (signal) generators |
Current measuring equipment | Radar testing instruments, electric |
Decade boxes: capacitance, inductance, and resistance | Radio apparatus analyzers for testing electrical characteristics |
Demand meters, electric | Radio frequency measuring equipment |
Digital panel meters, electricity measuring | Radio set analyzers, electrical |
Digital test equipment, electronic and electrical circuits and equipment | Radio tube checkers, electrical |
Digital-to-analog converters, electronic instrumentation, type | Recorders, oscillographic |
Diode and transistor testers | Reflectometers, sliding shorts |
Distortion meters and analyzers | Resistance measuring equipment |
Elapsed time meters, electronic | Semiconductor test equipment |
Electron tube test equipment | Signal generators and averages |
Electronic test equipment for testing electrical characteristics | Spark plug testing instruments, electric |
Energy measuring equipment, electrical | Spectrum analyzers |
Field strength and intensity measuring equipment, electrical | Standard cells |
Frequency meters: electrical, mechanical, and electronic | Standards and calibration equipment for electrical measuring, except laboratory |
Frequency synthesizers | Standing wave ratio measuring equipment |
Function generators | Stroboscopes |
Galvanometers, except geophysical | Sweep generators |
Ignition testing instruments | Sweep oscillators |
Impedance measuring equipment | Synchroscopes |
Indicating instruments, electric | Tachometer generators |
Instrument relays, all types | Test equipment for electronic and electrical circuits and equipment |
Instrument shunts | Test sets, ignition harness |
Instruments for measuring electrical quantities | Time code generators |
Instruments, electric: for testing electrical characteristics | Transformers, instrument: portable |
Integrated-circuit testers | Tube testers |
Integrating electricity meters | Volt-ohm milliammeters |
Internal combustion engine analyzers, to test electrical characteristics | Voltmeters |
Laboratory standards, electric: resistance, inductance, and capacitance | Watt-hour and demand meters, combined |
Logic circuit testers | Watt-hour and time switch meters, combined |
Measuring equipment for electronic and electrical circuits and equipment | Watt-hour meters, electric |
Measuring instruments and meters, electric | Wattmeters |
Meters, electric: pocket, portable, panelboard, and graphic recording | Waveform measuring and/or analyzing equipment |
Codes |
Titles | Total Marketable US Businesses |
38250000 | Instruments to measure electricity | 566 |
38250100 | Engine electrical test equipment | 20 |
38250101 | Alternator and generator testers | 6 |
38250102 | Automotive ammeters and voltmeters | 1 |
38250103 | Battery testers, electrical | 26 |
38250105 | Digital test equipment, electronic and electrical circuits | 58 |
38250106 | Ignition testing instruments | 4 |
38250107 | Internal combustion engine analyzers, to test electronics | 26 |
38250108 | Spark plug testing equipment, electric | 1 |
38250109 | Test sets, ignition harness | 1 |
38250200 | Test equipment for electronic and electric measurement | 205 |
38250201 | Analog-digital converters, electronic instrumentation type | 35 |
38250202 | Analyzers for testing electrical characteristics, nec | 8 |
38250203 | Audiometers | 6 |
38250204 | Bridges: Kelvin, Wheatstone, vacuum tube, megohm, etc. | 1 |
38250205 | Decade boxes: capacitance, inductance, and resistance | 0 |
38250206 | Digital panel meters, electricity measuring | 14 |
38250207 | Diode and transistor testers | 1 |
38250209 | Electron tube test equipment | 4 |
38250210 | Frequency synthesizers | 7 |
38250211 | Function generators | 0 |
38250212 | Impedance measuring equipment | 0 |
38250213 | Instrument relays, all types | 2 |
38250215 | Integrated circuit testers | 11 |
38250216 | Lab standards, electric: resistance, inductance, capacitance | 3 |
38250217 | Logic circuit testers | 3 |
38250218 | Microwave test equipment | 15 |
38250219 | Network analyzers | 178 |
38250220 | Pulse (signal) generators | 3 |
38250221 | Radar testing instruments, electric | 7 |
38250222 | Radio apparatus analyzers, nec | 4 |
38250223 | Radio set analyzers, electrical | 5 |
38250225 | Reflectometers, sliding shorts | 1 |
38250226 | Semiconductor test equipment | 87 |
38250227 | Shunts, electrical | 0 |
38250228 | Signal generators and averagers | 6 |
38250229 | Spectrum analyzers | 15 |
38250230 | Standard cells | 3 |
38250231 | Standards and calibrating equipment, laboratory | 21 |
38250232 | Standards and calibration equipment for electrical measuring | 15 |
38250233 | Sweep generators | 1 |
38250234 | Synchroscopes | 2 |
38250235 | Tachometer generators | 1 |
38250236 | Test equipment for electronic and electrical circuits | 126 |
38250237 | Time code generators | 2 |
38250238 | Transducers for volts, amperes, watts, vars, frequency, etc. | 15 |
38250239 | Transformers, portable: instrument | 4 |
38250241 | Waveform measuring and/or analyzing equipment, nec | 3 |
38250242 | X-Y recorders (plotters), except computer peripheral equip. | 1 |
38250300 | Electrical energy measuring equipment | 51 |
38250301 | Ammeters, nec | 1 |
38250302 | Ampere-hour meters | 1 |
38250303 | Current measuring equipment, nec | 7 |
38250304 | Demand meters, electric | 1 |
38250305 | Electrical power measuring equipment | 51 |
38250306 | Energy measuring equipment, electrical | 50 |
38250307 | Field strength and intensity measuring equipment, electrical | 2 |
38250308 | Frequency meters: electrical, mechanical, and electronic | 11 |
38250310 | Instruments for measuring electrical quantities | 9 |
38250311 | Integrating electricity meters | 13 |
38250312 | Measuring instruments and meters, electric | 46 |
38250313 | Meters, power factor and phase angle | 6 |
38250314 | Meters: electric, pocket, portable, panelboard, etc. | 15 |
38250315 | Multimeters | 2 |
38250317 | Oscillators, audio and radio frequency (instrument types) | 13 |
38250318 | Oscillographs and oscilloscopes | 6 |
38250319 | Potentiometric instruments, except industrial process type | 3 |
38250320 | Power measuring equipment, electrical | 10 |
38250321 | Radio frequency measuring equipment | 42 |
38250322 | Recorders, oscillographic | 1 |
38250323 | Resistance measuring equipment | 0 |
38250325 | Stroboscopes | 1 |
38250326 | Sweep oscillators | 1 |
38250327 | Volt meters | 0 |
38250331 | Watt-hour meters, electrical | 3 |
38250332 | Wattmeters | 0 |
38259901 | Elapsed time meters, electronic | 7 |
38259902 | Indicating instruments, electric | 4 |