Assists in the measurement of spectroscopic angles, refraction, and diffraction. It is geared to meet the requirements of student lab experiments. The unit is mounted on stable base with an attached collimator. The platform is able to rotate 360 degrees. Additional Info: Quality linear gratings protected by two glass plates, 60mm x 45mm. Viewing area measures approximately 37mm x 20mm. Package Size(L x W x H): 2.5 X 2 X 0.25 (IN) Categories: Test Equipment, Spectrometer HTS Code: 9031.90.9095 UNSPSC: 4.11018e+007 Country Of Origin: INDIA