That's. . .a meter. Like, "meter" literally means "measuring device." That's why you have gas meters, water meters, electric meters, odometers, pedometers, chronometers, thermometers, tachometers, barometers. . .
Haha. It's different. Meter implies graphical device of some kind. Observe:
https://www.google.com/search?site=&...86.vhXpFTu1kgs As I said, I don't need a graphical device with bells and whistles aka a meter. Just a few digits to let me know how much damage per second I am doing on a specific encounter. No meter required.
So, something that measures your current DPS. . .like a meter.
Let me fix that google for you:
https://www.google.com/search?site=&...=digital+meter