Gizmode 9 Volt Water Alarm Detector, 110 dB AlarmA small drip unattended can lead to a serious amount of damage, whether it mold or mildew or even a small puddle there is bound to be problems. If you are not made aware early on these incidents can go undetected for a long time. The Gizmode Water Alarm prevents mold, mildew or other water damage from occurring by letting you know right at the start when something is wrong. Its small design means you can place it in any area where you want to be