iHome iSB02 Battery Powered WI-FI Dual Leak Sensor, White

Amazon.com Price: $16.50 (as of 04/09/2023 12:39 PST- Details)

Simple, free 24/7 home monitoring of your home or business environment for leaks. Instant alerts. Helps to avoid expensive leak damage and repairs
Like having two sensors in one! Dual leak probe feature. Leak probe on bottom of sensor and on extra long 6′ sensor probe allows for flexible placement of leak sensors.
Battery Wi-Fi powered, allows for flexible and convenient placement without wires, under sinks, by washer, by toilets and hot water heaters, doorways and more