The 0.5 mW Helium-Neon Laser complies with the Laser Performance Standard of the U.S. Department of Health and Human Resources, and with Title 21, Part 1040 of the Code of Federal Regulations as it applies on the date of manufacture. Grades 9-12..

Sturdy construction and long battery life allow for heavy use as a teaching tool for scientific presentations, conferences, lectures, seminars, and planetariums. The attractive metal pen-shaped unit can be easily carried in a shirt pocket. Projects ..

A handy, low-cost, pen-sized laser pointer for many applications #45; education, scientific research, or everyday life! Features a 675 nm wavelength beam, an output power of approximately 3 mW, and radiant power less than 5 mW. Beam diameter is 10 m..

A green diode laser pointer with a maximum power output of 5 mW (Class IIIA) and a 532 nm wavelength. Green laser beam is 30 times brighter than the red laser beam of the same power because of the increased sensitivity of the eye to green light compared..

Includes one violet (SB48473M), red (SB29122M), and green (SB43423M) laser pointer.

This 2-1/2"-long laser pointer comes with a key chain for added convenience. Grades 7-12.

Use for far more than just pointing! The stunning blue-purple glow can be used for spectroscopy, fluorescence, microscopy, and more. The 405 NM wavelength beam has a power output of less than than 5 mW. Beam dimensions are 1 mm at aperture. Operatin..