A device that measures the proper acceleration of an object.

An instrument used to measure the altitude of an object above a fixed level

An instrument used to measure the current in a circuit.

A device used to measure wind speed and, in some cases, wind direction.

An instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.

A highly accurate timekeeping instrument, primarily used for maritime navigation to determine longitude at sea, and also for scientific and time-related applications.

A sensitive instrument used to measure the gravitational field of the Earth, or more specifically, variations in that field.

An instrument used to measure the density or specific gravity (relative density) of liquids.

An instrument for measuring the distance traveled by a vehicle.

An instrument for estimating the distance traveled on foot by recording the number of steps taken.

An instrument for measuring the intensity of light.

An instrument that responds to ground displacement and shaking such as caused by quakes, volcanic eruptions, and explosions.

An instrument on a vehicle’s dashboard indicating its speed.

An instrument for measuring and indicating temperature.

An instrument for measuring electric potential in volts.

An instrument that records the speed, duration, and sometimes also the direction of the wind.

A person’s signature, especially when it’s signed by a famous person.

It is a barometer that records the barometric pressure over time in graphical form

An instrument that produces a trace or image representing a record of the varying temperature or infrared radiation over an area or during a period of time.

A scientific instrument used to detect and record ground movements caused by seismic waves, primarily from earthquakes