It is possible to measure through transparent 
			medium such as glass sheet or acrylic plate. However, it should not 
			be vibrated. If not only the measurement object but the transparent 
	  medium are vibrated, it causes measurement errors. 
      
      

      
      
      
         
        *For the LV-1100 or LV-1600 series, the amount of reflection light can be checked by the indicator on the main unit.