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The 30A-N-18 is a thermal power/energy laser measurement sensor for high power density YAG lasers with an 17.5mm aperture. It can measure from 60mW to 30W and from 30mJ to 200J. It has the N type volume absorber and can measure 0.532 and 1.064µm. The sensor comes with a standard 1.5 meter cable for connecting to a meter or PC interface.