The new generation handheld mine detector family (ETMTS-1, ETMTS-2, ETMTS-3), which was developed indigenously within the framework of the projects carried out by our organization, has the capability to detect metallic and plastic mines and improvised explosive devices (IEDs) and to monitor the underground. Thanks to their sensors, ETMTS devices are capable of detecting metallic objects with a metal detector and detecting non-metallic objects with the Ground Penetrating Radar (GPR) feature. Thanks to the LCD visual interface of the systems, users can have preliminary information about the depth and type of the object. ETMTS-1, ETMTS-2 and ETMTS-3 products have been offered to the Turkish Armed Forces and Turkish National Police, and some of them have been exported abroad. The products have been developed in accordance with MIL-STD 810G environmental conditions and MIL-STD 461 electromagnetic compatibility standards and can operate in the temperature range of -25 to +55 degrees Celsius. The ETMTS-3 System, the latest product in the series, has been redesigned based on user feedback, its weight has been reduced to 3.2 kg and its ergonomics have been improved. The ETMTS System was subjected to field trials abroad and in various regions of Turkey, and the ETMTS-3 System was especially appreciated by operators and participants for its ergonomic structure and visual interface.