Expandable leak sensor cable - more range, more safety. Coverage of up to 150 metres: Connect several cables together to reliably secure even large areas. Flexible placement: Ideal for hard-to-reach areas where water damage often goes unnoticed. Easy integration: The cable is connected directly to your Shelly Flood Gen4 and is ready for immediate use. Full-length protection: The entire length of the cable reliably detects water - for comprehensive safety in any area.