@mcphersonkent - Welcome to the Sense community! I had mine installed about 2 weeks ago, so I’m also fairly new.
I’ve discovered that “device” in Sense may be only a component of a device. For example, my Sense has recognized the component of my Kuerig that keeps the unit warm AFTER my coffee is brewed.
I’ll pass along the advice I received at first. Just be patient and allow Sense to collect the data it needs — it takes a lot of data for ML applications. Turn on notifications and watch them for a day or two or three to see if you can make any correlations (time of use, length of use, etc) to your coffee pot usage or maybe to another similar device. If you remain stumped, take a screenshot and see if anyone on here may recognize it or have suggestions.
If all else fails, or if you’d rather go this route first, the Sense support team is awesome and very responsive!