The phrase "alternative unit" is correct and usable in written English.
You can use it when referring to a different measurement or category that can be used instead of a standard unit.
Example: "In this experiment, we will measure the temperature in Celsius, but we can also use an alternative unit like Fahrenheit if needed."
Alternatives: "substitute unit" or "different unit".
Foam fractionation appears as a promising alternative unit operation in biotechnological downstream processing.
Unless the president offers an alternative unit, the "Obama" will be defined as a measure of smiling at somebody and completely ignoring them.
To accommodate the uncertainty of demand response, alternative unit commitment methods robust to the uncertainty of the demand response require investigation.
An alternative unit called the cosmic year has been suggested, based on the Sun's orbit around the center of the Milky Way galaxy about once every 225 million years.
An alternative unit of force in a different foot-pound-second system, the absolute fps system, is the poundal, defined as the force required to accelerate a one pound mass at a rate of one foot per second squared.
The pound-force provides an alternative unit of mass: one slug is the mass that will accelerate by one foot per second squared when acted on by one pound-force.
The aim of this study was to investigate the effects of these alternative units, rather than readily available double-glazed units, in two types of flats.
The focus has shifted to alternative units of scientific products, elements and modes of knowledge and scientific achievement.
In the first step, context-dependent prefiltering is done to reduce the set of alternative units for a suffix.
Table 2 presents the results of the same experiment in alternative units, where the max ( d v E ) per scene appears in the top three rows in terms of the percentage of frame resolution, absolute minutes of arc and pixels, respectively.
Alternative units have been considered [ 8, 9].
