Thanks. So there is no way to use the inside holder of this on a regular electrical box. The reason I like this one is it's flush on the face, the other one has a cover over the finger which protrudes. My plan was to use this on an outdoor electrical box, mount it on the inside of the electrical box and put an outdoor box lid cover on the front. So you lift the cover and the finger print sensor is there

Will this will fit FPM10A Any special print instructions? Supports required? It fits a standard electrical box?