I wanted to add a whisper sensor to my existing system.  I accidentally added it as a new device.  I did eventually add the new whisper sensor to my original device.  The issue is I now have two devices in the app.  The first is a device named Sprinkle that has my three whisper sensors attached and a second device named Plant Sensor with nothing attached to it. I want to delete the device  named Plant Sensor.  I cannot find a way to delete it.  

Thanks,

Scott