| Intertek |  |
| Nationally Recognized Testing Laboratory (NRTL) which tests and certifies to worldwide standards for regulatory compliance. Used by Laurel Electronics, Inc. | |
| ETL Mark |  |
| Mark authorized by Intertek which proves that a product has been independently tested to meet applicable published safety standards. In the illustration to the right, the number 4006497 is the test file of Laurel Electronics, Inc. | |
| Underwriters Laboratories Inc. (UL) |  |
| Not-for-profit product safety testing and certification organization since 1894. Laurel products with the ETL mark are certified to UL Standard UL61010-1. | |
| CSA International (CSA) |  |
| Nationally Recognized Testing Laboratory (NRTL) testing and certifying to U.S. and Canadian standards. Laurel products with the ETL mark are certified to CSS Standard C22.2 #61010-1. | |
| International Organization for Standardization (ISO) |  |
| The world's largest developer of standards. | |
| CE Mark |  |
| Indicates that the product meets EU health, safety, and environmental requirements to ensure user safety. Laurel products with the CE mark have been tested to the EN55011, EN61326-1 and EN50082-1 Standards. |
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