GER Detect Titan 400 Smart Long Range Metal DetectorGER Detect Titan 400 Smart Metal Detector Depth: 25 meters Distance: 3000 square meters GER Detect Titan 400 Smart Metal Detector device, with a completely new design, is the first of its kind in the world. GER Detect Titan 400 Smart Metal Detector device can bypass all types of mineral rocks with automatic calibration technology, including sedimentary, metamorphic, and igneous rocks, which consist of two types: Granite and Basalt, which are among the