An apparatus for detecting leaks in liquid-carrying components

An apparatus for detecting leaks in liquid-carrying components (10) by means of a responsive leakage sensor, said to be monitored component (10) is introduced into a closable, leakage fluid receiving enclosure (15), wherein in the liquid receiving casing (15) electrodes (20, 25) are embedded, wherein the liquid receiving casing (15) by means of an opening (18) can be applied to the formed as a hose or pipe to be monitored component (10), wherein the inner contour (16) of the envelope (15) to the outer contour of the component (10) is adapted the inner contour (16) bears an electrical insulation layer, the inner contour (16) is liquid permeable, the opening (18) and the outer contour (17) are liquid-tight manner the enclosure (15), characterized in that the envelope (15) having a longitudinally extending slot as an opening (18) is provided, this slot is liquid-tightly glued or pasted, and the inner contour (16) of the envelope (15) comprises a ground terminal (24).