The non-invasive current sensor allows for simple measurement of alternating current without interrupting the conductor. Just place it over one conductor to obtain an output voltage of 0–1 V AC proportional to the current, ideal for integration with LAN controllers LK3 and LK4. Measurement should only be performed on one conductor, not the entire cable, through which the current flows in both directions. The practical connection is facilitated by a 1 m cable with a 3.5 mm jack connector, which can be adapted to the installation.