The MOCREO SW2 Sensor is the Water Leak Detector. It will sensitively detect water leakage. Once there is a leakage, it will immediately sound a loud audible alarm and send App notifications or e-mail alerts to keep you one step ahead of the problem. With SW2 Sensor, it can be widely used in basements, kitchens, pipes, water heaters and any other place where leaks and flooding may occur.