Class 3B Warning Sign | The Laser Institute

Please note that our office is closed on Friday, July 4, 2025 in observance of Independence Day. During this time, we will not be able to respond to phone calls, emails, or process orders.

All inquiries and orders received during this time will be addressed in the order they were received beginning Monday, July 7th. We appreciate your understanding and look forward to assisting you when we return.

This 10x14 plastic sign is used for all entryways into a class 3B laser controlled area operating laser systems that exceed the applicable Maximum Permissible Exposure (MPE) limit for irradiance. These signs meet the ANSI Z136.1 for Safe Use of Lasers requirements for signage.

Quantity discounts:

(apply only to purchases of identical signs)

	Member	Non-Member
1	$25.00	$29.00
2—6	$22.50	$26.10
7—10	$21.25	$24.65
11 or more	$20.00	$23.20

Product price

$29.00

Member Price:

$25.00

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When applicable, multiple quantity discounts are applied once the items are added to your cart.