Quality linear gratings protected by two glass plates, 60mm x 45mm. Viewing area measures approximately 37mm x 20mm. The DFG525-pk/5 Diffraction Gratings in Slide Viewers has a viewing
area of 35mm x 25mm Additional Info: Quality linear gratings protected by two glass plates, 60mm x 45mm. Viewing area measures approximately 37mm x 20mm. The dfg525-pk/5 diffraction gratings in slide viewers has a viewing
area of 35mm x 25mm Package Size(L x W x H): 2.25 X 2 X 0.25 (IN) Categories: Test Equipment, Spectrometer HTS Code: 9031.90.9095 UNSPSC: 4.11018e+007 Country Of Origin: INDIA