Protect the floor under the cabinets in the kitchen. There are two different types of floor coverings that work in a few different ways. G Series, is a tray that collects water under the sink cabinet at a leak. This must be combined with a water alarm, WaterFuse or flood protection, such as AquaDrain or AquaLink. An alternative is also to link the protector with GD-series that has an outlet for the water. This is done with an AquaClip. Picture number two in the slideshow above shows G-protector on the left and GD on the right, linked with AquaClip.
The GD Series (Picture Number Three) is a combined dishwasher / washer / floor cover. Unlike the G series, this has an outlet so water can be directed to become visible.