Here's an electronic project easy enough for a beginner but really useful. The simple Water Alarm kit has a buzzer to alert you to a leaking pipe, washing machine hose or hot water heater. Cut the circuit board and add wiring to install the buzzer farther from the sensor. Includes components, battery holder, directions and schematic. A good project to learn basic soldering. (Solder, tools and 9-volt battery not included.)
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