The Dosimetry and Radiation Transfer Department of the Central Laboratory of the Turkmenstandartary State Service of the Balkan Velayat. The procedure for checking the EDK level of external gamma radiation of all types of products and goods that are brought into and out of the country, produced within the country, is designed to detect the absence of man-made or natural radionuclides in materials and products. . The measuring alarm monitor mobile device is designed to determine the capacity level of external gamma radiation exposure dose of products brought to our country in accordance with the current regulatory documents, that is, the radiological examination of certified products in mR/sag and mZ/sag measurement units. Inorganic building materials include crushed stone, gravel, sand, cement, plaster and facing tiles.