NAMUR proximity sensor types NAMUR proximity sensors can be capacitive, inductive, magnetic, or can be photoelectric sensors. One could be easily fooled by assuming that a NAMUR sensor is a typical proximity sensor because they look very much alike. But physical shape and appearance are the only characteristics they have in common. Watch the video and complete the statement below: A NAMUR proximity sensor: a) Is available only as Normally-closed b) Is available only as Normally-open c) is avail