3825 - Instruments for Measuring and Testing of Electricity and Electrical Signals
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. …
Examples: Alternator and generator testers, Ammeters, Ampere-hour meters, Analog-to-digital converters, electronic
