ShockTec is a digital shock detector providing 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 piezo electric sensor . A unique feature of ShockTec 600S is a 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 .