@kleach, if you need a very fast notification when loosing power (like I did), see this post: Detect power out / off at Hub Location with Hub and Internet on UPS
I basically used a common battery powered door/window switch on a no-voltage side of a relay, and wired the other side of the relay to a 110v lamp cord that plugs into the circuit you are trying to monitor. When that circuit loses power, the battery powered door/window switch changes state. In ST you can set your notification to fire and alert you when that switch changes state - nearly immediately. DM me if you have any questions - It has been working great.