I bet this product is a huge hit in the Netherlands, and if you live near a river which tends to flood up in the rains, this Doberman SE-0111 Flood Alarm would essentially be a must have for you. All you have to do is to mount the alarm on a wall and leave the sensor on the floor in the most vulnerable part in your house. So if when flood water creeps into your house, you can be notified and alerted with its very loud 110db alarm that might just give you a heart attack it goes out past your bedtime!

Source: Go Paul Tech207877