https://www.amazon.com/gp/product/B01LXR0B8Q/

I use this with Wink. It shows up as a "Leak Sensor" and has saved my ass once so far. Well, saved me from major damage. There was a leak but I got the phone alert and managed to stop it within a minute rather than it going for hours or days. Water heater blew, it was a big deal. It is still on the original battery after two years. You can test it just by setting it on your hand - if the metal prongs on the bottom detect any conductivity it goes off. Beeps loud and your wink notifications will go off on your phone.

Sorry if this doesn't help.