About this itemDetect leaks in small areas like under washing machines, refrigerators and other appliances with the Phyn Water Sensor Extension Node. Plug the Node into the Phyn Smart Water Sensor and when it comes in contact with water, you will immediately receive SMS and app notifications and be alerted audibly and visually. With the addition of the Sensor Node, the Phyn Smart Water Sensor also continues to act as a detector, doubling your opportunity to protect your home from leaks. Features