Caution Sign - Laser Radiation Class 4 Avoid - ANSI
Amazon.com: OSHA Danger Sign - Class Iv Laser Visible and Invisible | Plastic Sign | Protect Your Business, Construction Site, Warehouse & Shop Area | Made in The USA : Everything Else
Modern Industrial Safety Stickers - DANGER - CLASS 4 LASER Radiation Stickers - 3" Triangle
Phillips Safety Products 32 Class 4 Plastic Laser Radiation Warning Si – Kemper Medical
Appendix F: Laser Hazard Warning, Danger and Notice Signs | Office of Environment, Health & Safety