1. Linear Measuring Instruments
* Rulers
* Tape measures
* calipers
* Micrometers
2. Angle-Measuring Devices
* Protractors
* Clinometers
* Theodolites
3. Time-Measuring Devices
* Stopwatches
* Clocks
* Atomic clocks
4. Temperature-Measuring Devices
* Thermometers
* Thermistors
* Pyrometers
5. Pressure-Measuring Devices
* Manometers
* Barometers
* Piezometers
6. Mass and Weight Measuring Devices
* Scales
* Balances
* Load cells
7. Electrical-Measuring Instruments
* Voltmeters
* Ammeters
* Ohmmeters
* Multimeters
8. Radiation-Measuring Devices
* Geiger counters
* Scintillation counters
* Dosimeters
9. Sound-Measuring Devices
* Sound level meters
* Noise dosimeters
* Audio analyzers
10. Gas-Measuring Devices
* Gas chromatographs
* Mass spectrometers
* Gas sensors
11. Liquid-Measuring Devices
* Beakers
* Graduated cylinders
* Pipettes