... 1.Features…………………………….Slim and Exquisite profile,installation with ease.Max.protection height: 1740mm.Perfect self-checking.Perfect interference immunity.Long- ... -interference to Light : 10000Lux(incidence angel≥5°)Light Source : infrared,940nmHousing : Aluminum alloy,PCSealing: IP65Light Pitch: 10mm,20mm,40mm, ... Range: 400~3500mmProtection Height (xx-1)×pitch,xx-beams Infrared Light Curtain MC2420