You can use the adapter, or you can use the two existing plugs on the oil filter housing which is what I use. I don't have oil temp, but I do have oil pressure. If your concerned about the filter being too low (which I do agree with you), I'd just use the plugs.
If you look on the oil filter housing, you will see two large allen plugs on it. They are there for sensors such as this, as an oil pressure sensor is a factory option. Caution though, they are a pain in the a$$ to remove.