... self-checking&interference-immunity. .PNP or NPN output. 1.Features…………………………….Slim and Exquisite profile,installation with ease.Max. ... axis pitch 10mm, 20mm, 40mm, 80mmProtection height=(xx-1)×light axis pitchMCxx10 150, 190, 230, 270......1070mmMCxx20 ... 20mm,40mm,80mmProtection Range: 400~3500mmProtection Height (xx-1)×pitch,xx-beams Industrial automated production line light curtain MC1640