One of the urgent problems in modern power indus¬try is to provide safety of man staying in the affected area of elec¬tric and magnetic fields generated by operating electric facilities. The paper presents integrated hardware and software system "PRIZNAK-10M", intended for measurement of power-frequency electric and magnetic fields in electric networks. Inte-grated hardware and software system put into practice the me-thods of measurements, met the regulatory documents effected in electric networks of Russia. The recommendations have been de-veloped to provide the man safely at the facilities studied