This is a pretty nice water leak sensor. It also has temperature and humidity sensor built in. I had no issues pairing it with Home Assistant and Zwave JS.
Pros
+ small and compact
+ long cord, perfect for sump pump
+ has temperature and humidity sensor
Cons
– no audible alert, small LED to alert
items seen in this video. Amazon links to products. As an Amazon Affiliate I earn a commission on qualifying purchases at no cost to you.
+ Aeotec Water Sensor 7 Pro: https://amzn.to/2TnyGBJ
+ Fibaro water sensor: https://amzn.to/3dBVep0
items used to make this video
+ DJI OM4 stabilizer: https://amzn.to/3hoX4uA
+ Samsung S21: https://amzn.to/36b3d8w
+ Zoom portable mic: https://amzn.to/3htwr7K
+ Davinci Resolve Studio: https://amzn.to/3bK97zB