It's the K40 radar. I have the exact same knob.
It is the k40, I have it in my car and it has the lights in the dash by the gear indicator. I didn't trust it as I found the front remote hidden by the battery shut off. I had my valentine in the window. I left my development the other day and Mr. Man was radiating!,,, My valentine v1 was screaming, it is very pertective of me. The K40 beeped once when I was beside him. It is junk period.
