... /PNP out, perfect compatibility 1.Basic introductionSNA2220 light curtain series, sensor section size is 53 ×35,structure compact,beautiful ... simple, structure compact, the contour is artistic.(2)Light curtain form:Direct transmission type(3)Standard configuration:Emitter ... SNA1620-N)Notes Notes *Identifies the parameters for the selected Infrared light sensor for guarding industrial automated machines