FIELD: means of protection.
SUBSTANCE: invention relates to means of protection and can be used for protection of especially important objects. The proposed device comprises the casing, code mechanism and signal bar arranged to revolve unobstructed. The casing pouter side is furnished with hermetic contact. The signal bar end extends beyond the casing is coupled with permanent magnet and revolves in attempted decoding. The signal bar revolved, electric signal is generated and switched off after decoding of coding mechanism. Attempted penetration into the premises is decided on from combination of electric signal duration or that of intervals between them.
EFFECT: control over attempted penetration into locked premises.
2 cl, 3 dwg
