ShockTec Plus is a digital shock detector with a door/window magnetic contact for internal use that provides reliable 24-hour perimeter protection . A break-in is detected as soon as the intruder attempts to force , smash , drill or even saw through the protected window , door , wall or roof . ShockTec employs an advanced digital microprocessor to analyze the vibration signal received from the electric sensor . A unique feature of ShockTec Plus is digital sampling of the signal simultaneously in two seperate channels , each channel amplified at a different gain . This provides an extremely wide dynamic range of the sampled signal , enabling precise measurement and analysis of the shock signal . The ShockTec Plus model has a magnetic reed switch for double protection of shock plus opening of windows or doors , connected to two seperate zones in the panel . Any attempt to defeat the detector by using large magnets , as defined by EN-50131-2-6 Security Grade 2 requirements , will cause a tamper .  Prices available on request .