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devices used to measure the speed, altitude, and pertinent flight angles of various kinds of aircraft
Laboratory equipment, the measuring tools used in a scientific laboratory, often electronic in nature
Mathematical instrument, devices used in geometric construction or measurements in astronomy, surveying and navigation
Measuring instrument, a device used to measure or compare physical properties
Medical instrument, a device used to diagnose or treat diseases
Optical instrument, relies on the properties of light
Quantum instrument, a mathematical object in quantum theory combining the concepts of measurement and quantum operation
Scientific instrument, a device used to collect scientific data
Surgical instrument
Vehicle instrument, a device measuring parameters of a vehicle, such as its speed or position
Weather instrument, a device used to record aspects of the weather