1. Under the Devices tab in your Harmony app tap Edit Devices, then + Device
2. Select ZIGBEE/Z-WAVE DEVICES and put your Leak Sensor in pairing mode by pressing the button next to the battery quickly 3 times
3. Once the Leak Sensor is found you can tap the pencil icon to rename it, then tap the X in the corner to go back
4. Tap Done on the bottom and your Leak Sensor is ready to rock
Your Dome Leak Sensor will be listed under Sensors and the status is displayed under its name.
If you want Harmony to close your water main valve when a leak is detected, check out this article:
Shut Off Your Water Main When Leaks are Detected in Harmony