These modules use a red (650nm 5mW, 6mm diameter) safe for everyday use and laser pointing. They are great coupled with a light sensor, such as our:
Light Dependent Resistors
Photodiodes
Applications for these include:
Laser-based or optical signals (especially with Optic Fiber)
Laser trip wires
Target tracking
Teasing cats
We sell two variants:
Laser Module - Comes on a 3-pin board (5V, GND, and Signal) to switch on/off the laser when used with a microcontroller.
Laser Component Only - for use as a standalone component for your circuits. We recommend using an in-line resistor (at least 1kR) with this component to limit current. The following are the component technical specifications:
