Sodium light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 350 lux at 20 cm and more than 90% of the light is concentrated in the doublet at 588.9/589.5 nm. Faint lines of the mercury spectrum are also visible.
GHS Mini Pictogram Label Sheets and Rolls - Toxic, 3/4 In x 3/4 In 500/roll, Vinyl GHS labels stick to any kind of surface - be it flat or curved, White, Label has white background with red border and black graphics
Magnetic Map Compass, Size: 2-1/2inx5-1/2in (60x140mm), for overhead projection, Compact 2in (50mm) diameter compass is graduated from 0 deg to 360 deg in 2 deg increments, has a liquid-filled capsule. For reading of topographical and tourist maps.
Planetary Gear Demonstrator, Size: 24cm x 14cm x 14cm, for explaining the principle of a planetary gear. By setting the internal sun and pinion gears into motion, Class Pack of 10
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