Caution/Invisible Laser Radiation Class 1M (IEC1009-H) Label
LASER SAFETY for STUDENTS - ppt download
Quarton Laser Module VLM-635-56 LPO-D20-F40 Red Line Laser Module Fan Angle 20° Uniform Line, Class 1M Laser, Less Than 0.39mW (Focus: 40cm) : Amazon.de: Gewerbe, Industrie & Wissenschaft