krousenickRecommended Leak Detector
If you have a zigbee network the aqara leak detector is a good option. It doesn’t require a hub, cloud or any setup. And if you are willing to wait you can get them on AliExpress for a lot cheaper than Amazon.
StandingCatIt does require a controller though. Just dont want someone seeing this and thinking zigbee magically works without a hub/controller.
That’s a good callout. When I said you need a zigbee network I guess I should have specified an antenna.
My point is that you don’t need the aqara hub, because sometimes people think it’s required.