... 4000-3500mm;SpecificationMCxx10 (xx=16, 20, 24, 28......96)MCxx20 (xx=08, 16,20......88)MCxx40 (xx=04, 08, 16......44)Light axis ... pitch 10mm, 20mm, 40mm, 80mmProtection height=(xx-1 ... 10mm,20mm,40mm,80mmProtection Range: 400~3500mmProtection Height (xx-1)×pitch,xx-beams Industrial Automatic Conveyor Belt Safeguard Light Curtain