Sound and light alarm reminder, with a built-in buzzer in the module. When a leak occurs, it sound an alarm and an indicator light to remind the leak. It can promptly handle water immersion to prevent losses. Sensitivity can be adjusted according to detection needs, with multiple levels of adjustment, ranging from detecting water droplet alarms to a wide range of different water immersion scenarios. Switch signal output, which can be connected to external devices such as sound and light alarms, automatic valves, intelligent alarms, etc., and integrated with various monitoring systems to achieve remote alarm and control of remote devices Wide voltage input, 9-15VDC DC power supply connected to power adapter for use and more choices.