A laser pointer is a handy device that emits a powerful laser light. It looks like a pen with a button that when pushed, makes a diode laser emit a red or a green beam. It is usually powered by two or three AAA batteries, and it can project to 150 to 3,000 yards away.
A laser pointer is commonly used in lectures and classes for enhancing LCD projections, charts, maps, and video presentations. It should be carefully handled, though, as it can cause serious eye injury when viewed directly.
Grip: Choose a laser pointer with a rubberized grip or body to prevent it from slipping from your hand.
Switch: If you intend to use it for teaching or lecturing, look for a laser pointer with a switch at the top that allows you to turn it off easily when not in use. Certification: Only use a laser pointer certified by the FDA to ensure its safety and quality.
Laser power: If you intend to use it with children around, look for a laser pointer with a low laser power of not more than five megawatts.
Safety information
Never look directly into a laser beam or aim a laser pointer at a person, as it can cause serious eye injury.
Do not lend a laser pointer to a child especially when left unsupervised.
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