Infinity Shield is setting a new bar for what a garage door safety sensor needs to ensure safe operation for every homeowner! Infinity Shield is the only garage door safety sensor to cover the entire garage door opening and gives you confidence that your door will not accidentally close on a loved one, a vehicle or anything else in the path of the door.  Infinity Shield has been rigorously tested and far surpasses the federal safety guidelines set by UL. Infinity Shield is UL325-Recognized device.