1999 Cintex Metal Detector. Model: M1H4403. Maximum aperture/clearance: 44 in. L x 3 in. W. Sensitivity tested with test strips as 1.0 mm ferrous metals, 1.5 mm non-ferrous metals, and 2.5 mm non-magnetic stainless steel. Actual numbers may vary depending on local site conditions, product tested, and other factors. Overall dimensions: 5 ft. 4 in. L x 1 ft. W. x 1 ft. 5 in. H.