Gujar Industries' Door Frame Metal Detector's are quite helpful for security purposes and are widely demanded in numerous different fields. Our Walk Through Metal Detector's are made up with oscillators, which bring forth an alternating current that passes through a spiral and appoints an alternate magnetic field. When an electronically conductive metal is close to these detectors, these create eddies of air, that origins an occurrence in the magnetic field, which enables the operator to perceive where the metal is. Our #WalkThroughMetalDetectors are reliable and easy to use. Ask for easy usage and less maintenance.