Hey folks - thought I would give you all an update. My pressure mat and my Ecolink door sensor both arrived. I dove right in and opened up the sensor cover, and to my delight there was a very obvious post with two posts where you can connect a wire pair prominently located on the sensor board. The pressure mat is no frills but it does just what it is designed to do, which is close the circuit when someone stands on it. I connected the two wires from the mat to the posts on the inside of the sensor. Then I paired the sensor with my hub, which was easy enough once I realized that you can’t do pairing without the cover on. Once paired I tested it and it worked flawlessly first time. The mat is now under my welcome mat outside my front door, and it sends my wife and I a push notification whenever someone is standing at the front door. The next step is to connect this into my sound system which will come once I order and install my Sonos system. Thanks to Blake (trotsky40) for blazing this trail. This led to exactly what I wanted. I would encourage anyone thinking about doing this to go for it. The whole project too less than 30 minutes once the parts arrived.