Last decade it was observed rapid increasing of attempts of terror attacks against important objects, as bridges, high buildings and other big strategic constructions, using mechanical oscillating devices (Tesla’s oscillator).   Every physical object or construction has their own resonance frequency.  If the frequency of oscillation of some mechanical device matches to the resonant frequency of the construction, the amplitude of the oscillations will dramatically increase till the catastrophal value and destruction of the object of attack. The main goal of a such type of the terror attack is the achievement of the coincidence of the working frequency of the oscillating  mechanical “bomb” with the own frequency of the attack object. So, rise the priority to determine exactly the own (natural) resonance frequency of the protected object, monitoring of  the frequencies and the amplitude of oscillations (or vibrations) and identification of the sources of vibrations near the protected object.  We propose and developed a system – robust and automatized, which includes  combination of sensors of motion (angular and linear) adjusted for  low and ultralow frequencies registration. This system can be simple installed on the protected objects, permits  “non-stop”  mode of monitoring and allows  to determine the localization of the source of vibration with the accuracy of +/- 1 m.  Original construction of the sensors, having a high sensitivity and fidelity, allows their exploitation without external adjustment  for a long period (20 years and more – with the  “self-ajustment” of  the sensors, using  incorporated calibrator). Sensors do not have any moving mechanical parts, are shock resistant up to 300 m/s² with time of return to the original parameters not exceeding 60 seconds.