Thermo Scientific Metal Detector. Model: APEX 300. S/N: 08062701. Sensitivity rated at: 2.0 mm Fe, 2.0 mm non-Fe, and 3.0 mm SS and features wash down construction. Maximum aperture clearance: 5-1/2 in. L x 5 in. W x 12 in. H. Product clearance above the belt: 9 in. Product clearance between installed guide rails: 3 in. Overall metal detector dimensions: 4 ft. 6 in. L x 2 ft. 1 in. W x 4 ft. 4 in. H.(H9).