- Fuel system instruments, aircraft (2)
- Gauges, motor vehicle: oil pressure, water temperature (8)
- Instrument board gauges, automotive: computerized (5)
- Pressure and vacuum indicators, aircraft engine (1)
- Testers for checking hydraulic controls on aircraft (3)
- Geophysical and meteorological testing equipment (4)
- Barometers, mercury and aneroid types (1)
- Geophysical or meteorological electronic equipment (29)
- Humidity instruments, except industrial process type (1)
- Meteorologic tracking systems (3)
- Seismographs (1)
- Wind direction indicators (3)
- Alidades, surveying (7)
- Levels and tapes, surveying (2)
- Map plotting instruments (3)
- Plotting instruments, drafting and map reading (2)
- Restitution apparatus, photogrammetrical (1)
- Sextants, surveying (3)
- Surveying instruments and accessories (22)
- Transits, surveyors' (1)
- Physical property testing equipment (13)
- Cable testing machines (3)
- Dynamometer instruments (1)
- Fatigue testing machines, industrial: mechanical (3)
- Hardness testing equipment (3)
- Stress, strain, and flaw detecting/measuring equipment (6)
- Testing equipment: abrasion, shearing strength, etc. (9)
- Torsion testing equipment (1)
- Nuclear radiation and testing apparatus (18)
- Geiger counters (1)
- Level gauges, radiation type (1)
- Medical diagnostic systems, nuclear (10)
- Spectrometers, liquid scintillation and nuclear (1)
- Fare registers, for street cars, buses, etc. (3)
- Toll booths, automatic (4)
- Turnstiles, equipped with counting mechanisms (3)
- Temperature sensors, except industrial process and aircraft (20)
- Thermocouples (4)
- Thermometers, including digital: clinical (1)
- Thermometers, liquid-in-glass and bimetal type (5)
- Breathalyzers (9)
- Chronometers, electronic (1)
- Compasses, magnetic: portable type (1)
- Fire detector systems, non-electric (4)
- Gas detectors (20)
- Instrumentation for reactor controls, auxiliary (13)
- Ultrasonic testing equipment (9)
- Vibration meters, analyzers, and calibrators (7)
- Polygraph devices (1)
- Liquid leak detection equipment (1)
