... machinery, woodworking machinery, three-dimensional garage, and other dangerous area's protection.SNB3230 series,direct transmission type, protective height 930 mm ... ,protective range 0~8000mm;2.SNB series's specificationProtection range, 0-8000mm;SpecificationSNBxx20 (xx=06, 08, 10, ... special explanation should be made on order; Cost-effective safety device,light barrier sensor SNB3230