Laser, Class II Diode, 0.8 mW

Diode laser emits 635-nm light and is ideal for conducting laser and optical experiments including voice and audio optical transmissions. Features include externally adjustable internal electronic amplifier suitable for low-voltage microphone inputs and higher amplitude AM/FM radio signals, analog (1 to 500 kHz) and digital (1 to 500 kHz) modulation capabilities, fool-proof beam stop, and more.