Goring-Kerr (Thermo-Engineering) DSP-2 Metal Detector. Machine has a 16" wide x 15" high aperature. 16'' Wide x 62'' long belt conveyor with pneumatic reject. Designed to detect minimum sphere/diameters (subject to installation)of: 2.0mm Ferrous, 2.5mm Non-ferrous & 3.0mm,with a sensitivity ratio generally at 100, with a frequency 300 KHz (can change from use) Mounted on a carbon steel frame with casters. Last used on bulk bags of rice. 120/230V 3/60/50.