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Measuring and Controlling Devices, NEC

Air Quality Measuring Equipment

Aircraft and Motor Vehicle Measurement Equipment

Alcohol Breath Detectors Manufacturers

Anemometers Manufacturers

Compasses Manufacturers

Drafting Instruments and Machines: T-Square, Template, Etc.

Dynamometer Instruments

Fatigue Testing Machines, Industrial: Mechanical

Fire Detector Systems, Non-Electric

Fuel System Instruments, Aircraft

Gas Detectors

Geophysical and Meteorological Testing Equipment

Instrument Board Gauges, Automotive: Computerized

Liquid Leak Detection Equipment

Measuring/Controlling Devices (Unclassified) Manufacturers

Medical Diagnostic Systems, Nuclear

Meteorologic Tracking Systems

Meteorological Instruments

Nuclear Radiation and Testing Apparatus

Photogrammetric Instruments Manufacturers

Physical Property Testing Equipment

Polygraph Devices

Pressure and Vacuum Indicators, Aircraft Engine

Rain Gauges

Solarimeters

Surveying Instruments Manufacturers

Surveying and Drafting Equipment

Temperature Sensors, Except Industrial Process and Aircraft

Templates Manufacturers

Testing Equipment: Abrasion, Shearing Strength, Etc.

Thermocouples

Thermometer Wells Manufacturers

Thermometers, Including Digital: Clinical

Thermometers, Liquid-In-Glass and Bimetal Type

Toll Booths, Automatic

Transits, Surveyors'

Turnstiles Manufacturers

Ultrasonic Testing Equipment

Vibration Meters, Analyzers, and Calibrators

Weather Tracking Equipment