product details

This remarkable hand-held silver laser makes reasonably-priced laser demonstrations a reality. The powerful 3mW solid-state laser diode emits a beam at a frequency of 670nM that can focus upon a board or diagram -- anywhere you want your audience's attention -- up to 500 feet away. A perfect accessory for various light and optical demonstrations! The pen is activated by depressing a simple momentary-pressure contact and includes 2 AAA batteries that provide power for three hours. It is covered by a 90-day warranty.