TT metal detectors are used to control very fast processes, where the test material moves at speeds up to 40 m / s and more.

These metal detectors consist of two parts: a control unit and a probe placed directly in the path of the controlled product. The detectors offer a high level of sensitivity, independent of the travel speed of the product being tested, and high resistance to interference occurring in an industrial environment. TT metal tunnel detectors allow detection of all types of metals and allow statistics of controlled products, counting all controlled and contaminated products separately.