Product Description Water Leak Alarm - Battery Operated Leak Alert Water Detector for Home Use (2 Pack) UNIQUE DESIGN This portable water leak alarm features a compact size of 80mm in diameter and 30mm in height, weighing only 100 grams. It is easy to install and suitable for various locations in your home, including sink cabinets, sump pumps, washing machines, bathrooms, basements, kitchens, and water heaters. The alarm has been upgraded from 90dB to an impressive 100dB as of September 2022, ensuring you will hear it when it matters most. HIGH QUALITY Constructed from durable ABS plastic and high-quality electronic components, this leak detector is designed to be completely waterproof and can even float on water. Its high-sensitivity sensor accurately detects moisture and issues a loud alert, providing peace of mind in case of leaks. EASY TO USE This wireless water leak detector operates on a single 6F22 9V battery (not included). Simply twist off the sensor cover to install the battery manually. The sensor is energy-efficient, allowing for up to one year of reliable home safety protection.