The Pepperl+Fuchs series 28 family of sensors can be universally used. It has a large range of models that allows it to be integrated into any automation environment. The sensors are contained in sturdy water resistant plastic housings with multiple fastening options and scratch resistant optical cover. Features such as a timer function, and functions including a light/dark switch, sensitivity adjuster and highly visible status LEDs make for less effort on the part of the user and streamline installation, setup and operation. Universal series with highly versatile fields of use Resistant against noise: reliable operation under all conditions Programmable time function GAN, GAB, IAB, as well as GAN-GAB and GAN-IAB as double function Version with red light Version with relay output