The Smart Water Leakage Sensor E4 from Nous is an advanced device for monitoring water leaks that communicates via ZigBee technology. This sensor is specifically designed to respond early to water accumulation, thereby minimizing potential damage from water ingress. The E4 is battery-operated and uses a CR2032 battery, allowing for easy installation and maintenance. With its compact design, the sensor can be flexibly deployed in various environments, whether in living spaces, basements, or other areas where water leaks pose a risk. The ZigBee technology ensures a reliable and stable connection to other smart home devices, facilitating integration into existing automation systems. The sensor is an essential tool for anyone looking to protect their premises from water damage.