What is UL 294?

UL 294 is the Underwriters Laboratories standard for access control system units, which is used to evaluate the construction, performance, and operation of access control systems. This listing evaluates the safety of the system and ensures that the products will operate reliably without creating a hazardous condition. From power supplies and card readers to delayed egress locks and control panels, the electronic components that are necessary for the proper operation of the access control system are tested thoroughly to ensure they will operate reliably without creating a hazardous condition.