A professional who inspects measuring, indicating, and controlling instruments, such as speedometers, sequence timers, and thermostats, and component parts, for conformance to specifications. Responsibilities include:

• Examines components and housings for specified characteristics, such as smoothness and centering of holes, or defects, such as scratches and chips.
• Measures instrument parts to verify conformance to blueprint specifications, using measuring devices, such as ruler, thread gauge, micrometer, and dial indicator.
• May use microscope to inspect bearings or other component parts.
• May test functional performance of instrument, using test equipment.
• May write inspection reports concerning defective parts and assemblies.