Yes — both fall within this heading because the classification is defined by the function of measuring speed or rotational rate rather than by the end-use sector. Industrial stroboscopes used for machinery inspection and automotive tachometers used for engine monitoring share the same SITC heading. However, at the HTS 10-digit level, the applicable tariff line may differ based on design or application, so importers should verify the specific subheading for each product type.

The key documentation is technical specification sheets confirming that the device's primary designed function is measuring rotational speed or velocity — not general-purpose voltage, current, or signal measurement. Manufacturer product catalogs, engineering drawings, and any applicable calibration certificates that reference RPM or speed measurement are useful supporting records. If the device has multiple measurement functions, a principal-use declaration from the manufacturer strengthens the classification position under this heading.