United Scientific Supplies RRT001-L Red Laser Ray Generator for Science Classroom Magnetic Optical Laser Line Projector, Battery Operated Lab Tool

The laser line generator is specially designed with a small glass rod in front of a Class 2 laser diode. This refraction effect creates an easily visible line instead of a laser point. The line can be projected to a distance of over a meter. When this line is used with mirrors or lenses, the reflection and refraction paths are easy to see. For safety, the laser only stays on when the button is pressed.
Device measures 2.75" x 1.25" x 1.25".
Warning: Always practice safe laboratory procedureswhen using a laser.

Features:

• Warning: Always practice safe laboratory procedures when using a laser.
• Visible line makes investigations into reflection and refraction a more vivid experience
• Laser only stays on when the button is engaged
• Safe Class 2 output (<1 mW)
• Includes two AAA batteries