MetRam Industriesatic Metal Detector. Model: MMD14-4. S/N: 59483 E. Metal detection surface: 15 in. L x 11-1/2 in. H. Maximum product aperture: 3-3/4 in. W x 11-1/4 in. H. Sensitivity tested with test strips as: 2.5 mm ferrous, 2.5 mm non-ferrous, and 4.0 mm non-magnetic stainless steel. Electrical requirements: 115 V, 1 phase, 60 Hz. Baldor motor: 1/4 hp, 1725 rpm, 115-208/230 V, 5/2.6-2.5 amps, 60 Hz, 1 phase. Perfection gear motor, maximum horse power: 0.88, ratio: 10-1, final rpm: 172.5. Control box, DC microamperes gauge: 0-200. Manual controller for sensitivity: 0-10; fine controller: 0-10. Alarm light, on/off power light, switch on/off power. Overall dimensions: 81 in. L x 25 in. W x 54 in. H.(H10).