How close a measurement is to the actual or "true" value.

Instruments are generally categorized by the specific physical quantity they measure:

The ability of the device to maintain its original performance and position over time. Common Categories of Instruments

What are the Characteristics of Measuring Instruments - datamyte

A "good" measuring instrument is defined by several technical standards that ensure the reliability of its data:

The consistency of results when the same input is measured multiple times under the same conditions.

Measuring instruments are specialized devices used to quantify physical properties—such as length, mass, time, and temperature—ensuring accuracy and fairness in both industrial and daily activities. These tools range from simple rulers to high-precision coordinate measuring machines .