• Sturdily built but precise spectrometer for everyday reliability in the student lab
• Auto-collimation feature speeds accurate setup
• Good quality optics and vernier for better results

The advanced features of this traditional-design spectrometer as well as its robust construction have made it one of the most popular economical instruments for coursework.  The spectrometer addresses the three key areas for successful student measurements: alignment of the instrument, easily recognizable images, and easy reading of the scales.

Specifications:
Optics:  22mm diameter achromatic objectives, drawtube and lock screw focusing, helical eyepiece accommodation, built-in auto-collimation system.
Divided circle & vernier: External divided circle 178mm diameter, graduated 0-360 x 30, double-ended internal flush vernier reading to 1′, illuminated vernier magnifier, circle and vernier fine adjustments engaged by lock screws, range 4.
Prism.grating table:  7cm diameter with engraved rings/radii pattern.  Prism clamp and grating holder included.  Fully rotatable with 3 leveling screws and height adjustment (range 2 cm).
Dimensions:  Base spread 24cm, height  26cm, telescope swing radius 27.5cm.  Weight 15kg (33 lbs).
Accessories included:  Prism, diffraction grating and holder, auto-collimation mirror, power supply, illuminated magnifier, and operators manual.
Additional Accessories required but not included: Spectrum tubes with power supply.