Based on this product's specifications, here are some alternatives and similar models
Water leak sensor probe ZAMEL SZH-03 cable 3 m EXT10000129
Summary description:
ZAMEL SZH-03 is a water leak sensor probe with a 3 m cable designed to detect liquid presence and report flooding events. The probe connects to compatible ZAMEL leak detection modules or alarm systems (see manufacturer compatibility). It is intended for placement along floors, near appliances or in utility rooms to provide early detection and protection against water damage.