Probably a (mono-axial) spectrometer: the muti-axial devices are usually used for glossy varnishes or metallic finishes featuring either aluminium or mica inclusions. Multi-axial spectrometers are typically an order of magnitude more expensive and are usually limited to industrial (typically automotive) applications.
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So is the thing used in paint stores a a multi-axial spectrophotometer?
Probably a (mono-axial) spectrometer: the muti-axial devices are usually used for glossy varnishes or metallic finishes featuring either aluminium or mica inclusions. Multi-axial spectrometers are typically an order of magnitude more expensive and are usually limited to industrial (typically automotive) applications.