Here are some other terms that could be used:
* Single-purpose instrument
* Specialized tool
* Task-specific instrument
Examples:
* Microscope: Used for viewing extremely small objects.
* Spectrophotometer: Used for measuring the absorbance and transmittance of light.
* Soldering iron: Used for melting and joining metals.
* Paper cutter: Used for cutting paper to a specific size.
It's important to note that while these instruments are designed for a specific task, they may be able to perform other, related tasks with some modifications or adjustments.
