... 40,80mm 1.Features of IBEST SNA Serires Safety light curtain : * Protection height: 0~2000mm, 0~ ... 8000mm and 0~15000mm, optional selection for users.* Light axis pitch: 10mm, 20mm, 40mm and 80mm.* ... signals for safety purpose.* Reset function: When light grating interdicted, equipment isn't able to work ... a parallel (e. G: Vertical and horizontal), light curtain can be used in series. Application fields: ...