These limits are designed to provide reasonable protection against harmful interference in a residential installation. This Biostar TZ75A ITE Infrared generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. There is no guarantee that interference will not occur in a particular installation. The vendor makes no representations or warranties with respect to the contents here and specially disclaims any implied warranties of merchantability[…]