NAICS 334513 — Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 
BEA sector: Industrial process variable instruments manufacturing
Activity: Absorption analyzers, industrial process type (e.g., infrared), manufacturing
Activity: Acidity (i.e., pH) instruments, industrial process type, manufacturing
Activity: Analyzers, industrial process control type, manufacturing
Activity: Annunciators, relay and solid-state types, industrial display, manufacturing
Activity: Boiler controls, industrial, power, and marine-type, manufacturing
Activity: Buoyancy instruments, industrial process-type, manufacturing
Activity: Chromatographs, industrial process-type, manufacturing
Activity: Combustion control instruments (except commercial, household furnace-type) manufacturing
Activity: Controllers for process variables (e.g., electric, electronic, mechanical, pneumatic operation) manufacturing
Activity: Coulometric analyzers, industrial process-type, manufacturing
Activity: Data loggers, industrial process-type, manufacturing
Activity: Density and specific gravity instruments, industrial process-type, manufacturing
Activity: Differential pressure instruments, industrial process-type, manufacturing
Activity: Digital displays of process variables manufacturing
Activity: Display instruments, industrial process control-type, manufacturing
Activity: Draft gauges, industrial process-type, manufacturing
Activity: Electric and electronic controllers, industrial process-type, manufacturing
Activity: Electrodes used in industrial process measurement manufacturing
Activity: Electrolytic conductivity instruments, industrial process-type, manufacturing
Activity: Electromagnetic flowmeters manufacturing
Activity: Flow instruments, industrial process-type, manufacturing
Activity: Fluidic devices, circuits, and systems for process control, manufacturing
Activity: Gas analyzers, industrial process-type, manufacturing
Activity: Gas and liquid analysis instruments, industrial process-type, manufacturing
Activity: Gas chromatographic instruments, industrial process-type, manufacturing
Activity: Gas flow instrumentation, industrial process-type, manufacturing
Activity: Gauges (i.e., analog, digital), industrial process-type, manufacturing
Activity: Humidity instruments, industrial process-type, manufacturing
Activity: Hydrometers, industrial process-type, manufacturing
Activity: Hygrometers, industrial process-type, manufacturing
Activity: Indicators, industrial process control-type, manufacturing
Activity: Industrial process control instruments manufacturing
Activity: Infrared instruments, industrial process-type, manufacturing
Activity: Instruments for industrial process control manufacturing
Activity: Level and bulk measuring instruments, industrial process-type, manufacturing
Activity: Liquid analysis instruments, industrial process-type, manufacturing
Activity: Liquid concentration instruments, industrial process-type, manufacturing
Activity: Liquid level instruments, industrial process-type, manufacturing
Activity: Magnetic flow meters, industrial process-type, manufacturing