Laser Pen, Red

This inexpensive and lightweight laser pen is useful for ray optics demonstrations and simple diffraction work. Once pressed the pen will stay on until the button in pressed again. In addition to this you can make your point on overhead images with this useful presentation tool. To help with this you do not have to keep your finger on the button.

Power : 0.5 milliwatts

Caution : Laser Light. Do not stare into the beam or view directly with optical instruments.