FIELD: pipe systems. SUBSTANCE: device secured on intertube object includes housing and in series-connected supply source, low-frequency electromagnetic vibrations generator and cylindrical induction coil with core connected to outputs of said generator. Housing is provided with steel flange for fastening device on intratube object. Device is provided with ferromagnetic rod of length not less than 0.3 of induction coil length, forming split joint with flange and adjustable clearance with induction coil core. Invention makes it possible to increase efficiency of detection of intratube objects and to increase service life of transmitter without replacing supply cells, when operating on oil and gas product mains. EFFECT: enhanced operation reliability. 16 cl, 4 dwg _
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