Our frame light barriers are used where objects need to be interrogated not just at a specific point, but in an area. Thanks to their large number of parallel beams, they can detect objects in a wide window. Our frame light barriers guarantee a consistently high resolution at every point in the frame. Balluff frame light barriers are available in dynamic and static versions. Frame light barrier, connection type=plug connector, switching output=NPN static normally open/normally closed (NO/NC),PNP static normally open/normally closed (NO/NC)