Hi saf101
I do not know what service the fortress leak detector uses... If someone can provide this information then we can add this.
For example the humidity sensor has the following JSON values in Vera:
"service": "urn:micasaverde-com:serviceId:HumiditySensor1",
"variable": "CurrentLevel",
"value": "71" (range 0-100)
I would need to know the same for the leak detector