Problem with the tiny tach's is you will crash trying to see them and they do not have a recall. The Jr. Drag tach by auto meter I believe, doesn't have recall but if mounted out on the hood is readable. I used one for a year. The Digatrons now can do anything you want and then some. Call them ask to speak with either Bettie or Jen Tell them I sent ya and they may give ya a good discount. Any is better than none.