Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product safety testing and certification organization. UL has tested products for public safety for more than a century. Each year, more than 17 billion UL Marks are applied to products worldwide.

Since the founding of UL in 1894, they have held the undisputed reputation as the leader in U.S. product safety and certification. Building on UL’s household name in the United States, they are becoming one of the most recognized, reputable conformity assessment providers in the world. Today, UL’s services extend to helping companies achieve global acceptance for their products, whether it is an electrical device, a programmable system or a company’s quality process.

The Greystone Current Switch and Sensor lines have been tested under UL’s strict standards and have been certified to bear the UL mark. Visit www.ul.com to learn more about Underwriters Laboratories Inc.