The Merlin Low-E Coating Detector is a dual purpose tester designed to detect Pilkington K-Glass and all other Low-Emissivity coatings on single and double glazed units and indicate on which surface it is present. Low-E glass is a vital component of energy efficient windows. It has a virtually invisible coating which the tool is designed to detect.
Simply place the tool onto the glass to be tested, if the tool detects the presence of a coating on the piece of glass an audible tone will be heard and the green indicator light will be illuminated. In this way installers and inspectors can verify the presence of the coating and the correct orientation of the unit.