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Measuring and Controlling Devices, NEC

Aircraft and Motor Vehicle Measurement Equipment

Automatic Turnstiles and Related Apparatus

Compasses Manufacturers

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

Dynamometer Instruments

Fire Detector Systems, Non-Electric

Gas Detectors

Geophysical and Meteorological Testing Equipment

Levels and Tapes, Surveying

Liquid Leak Detection Equipment

Measuring/Controlling Devices (Unclassified) Manufacturers

Medical Diagnostic Systems, Nuclear

Nuclear Radiation and Testing Apparatus

Plumb Bobs

Polygraph Devices

Pressure Transducers

Seismograph Equipment and Supplies Manufacturers

Stress, Strain, and Flaw Detecting/Measuring Equipment

Surveying and Drafting Equipment

Testers for Checking Hydraulic Controls On Aircraft

Testing Equipment: Abrasion, Shearing Strength, Etc.

Thermocouples

Thermometer Wells Manufacturers

Thermometers, Including Digital: Clinical

Turnstiles Manufacturers

Ultrasonic Testing Equipment

Vibration Meters, Analyzers, and Calibrators

Weather Tracking Equipment