Measurement range: Gauges can be designed to measure various parameters such as pressure, temperature, fuel level, and engine RPM. The measurement range would depend on the specific parameter being measured.
Display: The gauge may have a dial, digital display, or both to indicate the measurement value.
Units of measurement: The gauge would typically display the measurement value in standard units such as PSI, degrees Celsius or Fahrenheit, gallons, or RPM.
Accuracy: The gauge would have a specified accuracy, which would indicate how closely the measurement value matches the actual value of the parameter being measured.
Operating range: The gauge would have an operating range, which would indicate the minimum and maximum values that can be measured and displayed reliably.