This U.S. industry comprises establishments primarily engaged in manufacturing instruments and related devices for measuring, displaying, indicating, recording, transmitting, and controlling industrial process variables. These instruments measure, display or control (monitor, analyze, and so forth) industrial process variables, such as temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, concentration, and rotation.

• Absorption analyzers, industrial process type (e.g., infrared), manufacturing
• Acidity (i.e., pH) instruments, industrial process type, manufacturing
• Analyzers, industrial process control type, manufacturing
• Annunciators, relay and solid-state types, industrial display, manufacturing
• Boiler controls, industrial, power, and marine-type, manufacturing
• Buoyancy instruments, industrial process-type, manufacturing
• Chromatographs, industrial process-type, manufacturing
• Combustion control instruments (except commercial, household furnace-type) manufacturing
• Controllers for process variables (e.g., electric, electronic, mechanical, pneumatic operation) manufacturing
• Coulometric analyzers, industrial process-type, manufacturing
• Data loggers, industrial process-type, manufacturing
• Density and specific gravity instruments, industrial process-type, manufacturing
• Differential pressure instruments, industrial process-type, manufacturing
• Digital displays of process variables manufacturing
• Display instruments, industrial process control-type, manufacturing
• Draft gauges, industrial process-type, manufacturing
• Electric and electronic controllers, industrial process-type, manufacturing
• Electrodes used in industrial process measurement manufacturing
• Electrolytic conductivity instruments, industrial process-type, manufacturing
• Electromagnetic flowmeters manufacturing
• Flow instruments, industrial process-type, manufacturing
• Fluidic devices, circuits, and systems for process control, manufacturing
• Gas analyzers, industrial process-type, manufacturing
• Gas and liquid analysis instruments, industrial process-type, manufacturing
• Gas chromatographic instruments, industrial process-type, manufacturing
• Gas flow instrumentation, industrial process-type, manufacturing
• Gauges (i.e., analog, digital), industrial process-type, manufacturing
• Humidity instruments, industrial process-type, manufacturing
• Hydrometers, industrial process-type, manufacturing
• Hygrometers, industrial process-type, manufacturing
• Indicators, industrial process control-type, manufacturing
• Industrial process control instruments manufacturing
• Infrared instruments, industrial process-type, manufacturing
• Instruments for industrial process control manufacturing
• Level and bulk measuring instruments, industrial process-type, manufacturing
• Liquid analysis instruments, industrial process-type, manufacturing
• Liquid concentration instruments, industrial process-type, manufacturing
• Liquid level instruments, industrial process-type, manufacturing
• Magnetic flow meters, industrial process-type, manufacturing
• Manometers, industrial process-type, manufacturing
• Measuring instruments, industrial process control-type, manufacturing
• Mechanical measuring instruments, industrial process-type, manufacturing
• Meters, industrial process control-type, manufacturing
• Moisture meters, industrial process-type, manufacturing
• Panelboard indicators, recorders, and controllers, receiver industrial process-type, manufacturing
• Pneumatic controllers, industrial process type, manufacturing
• Potentiometric instruments (except X-Y recorders), industrial process-type, manufacturing
• Pressure gauges (e.g., dial, digital), industrial process-type, manufacturing
• Pressure instruments, industrial process-type, manufacturing
• Primary elements for process flow measurement (i.e., orifice plates) manufacturing
• Primary process temperature sensors manufacturing
• Process control instruments, industrial, manufacturing
• Programmers, process-type, manufacturing
• Pyrometers, industrial process-type, manufacturing
• Recorders, industrial process control-type, manufacturing
• Refractometers, industrial process-type, manufacturing
• Resistance thermometers and bulbs, industrial process-type, manufacturing
• Telemetering instruments, industrial process-type, manufacturing
• Temperature instruments, industrial process-type (except glass and bimetal thermometers), manufacturing
• Thermal conductivity instruments, industrial process-type, manufacturing
• Thermistors, industrial process-type, manufacturing
• Thermocouples, industrial process-type, manufacturing
• Thermometers, filled system industrial process-type, manufacturing
• Time cycle and program controllers, industrial process-type, manufacturing
• Transmitters, industrial process control-type, manufacturing
• Turbidity instruments, industrial process-type, manufacturing
• Turbine flow meters, industrial process-type, manufacturing
• Variable control instruments, industrial process-type, manufacturing
• Viscosimeters, industrial process-type, manufacturing
• Water quality monitoring and control systems manufacturing