Hub & 4-Pack Water Leak Sensor 2 Starter Kit

This item is a starter kit, containing four Water Leak Sensor 2 (model YS7904G) and one YoLink Hub (model YS1603).  The Water Leak Sensor 2 is a "rope" type water leak sensor. It has an integral alarm sounder, use of which is optional. Additional ropes/cords can be added, to expand the detection region. As a rope type sensor, this sensor is a frequent choice if: water detection is needed in a confined space, such as between an appliance like a built-in icemaker or refrigerator and the wall.  water detection is needed in a defined region, such as around a water heater or a sump pump water detection is required in several adjacent regions such as both under a bathroom sink and around a toilet, or under a kitchen sink and around a dishwasher (with optional extension cords, the area of water leak detection can be expanded) Water Leak Sensor 2 Features Wireless operation; no 120V outlet or wiring required Battery-powered (two standard alkaline AAA batteries, included) Integral