Spectrometer QFD a metal disc and a

a metal disc and a feather

with a flip of the switch

A 2 1/2-times life-size jumbo heart model excellent for elementary science classes

including student laboratories

Capacity: 610 Grams

Spectrometer QFD a metal disc and aAn economically priced Spectrometer, but capable of performing most of the experiments like spectras, angle of prisms, refractive indexes etc. Consists of heavy base with 170 mm diameter circle, divided 0 to 360 degrees, which rotates independently and has locking screw. Collimator: Fixed, with adjustable axis, objective lens with focusing system, variable aperture slit. Telescope: Moveable with set screw and fine motion screw, adjustable axis.