Most helpful critical review
2 of 2 people found the following review helpful
Great but one small problem.
on August 14, 2014
This gauge plugs into a round OBD connector usually found on medium duty diesel powered vehicles. It has a dual head so will fit earth the 6 on 9 pin configuration. It has a multitude of displays but you can only view 4 at a time. The readings appear to be very accurate. The supplied mount is a bit hokey. I used a piece of double stick foam and attached it to a short piece of bar steel with a rubber back. It sits on the motor home dash very well with this mount. I believe it could also be Velcro'ed to the dash face if desired. The only problem I have found is that it re-sets every few minutes. This is not a problem for everything except the average MPG. Due to the constant re-setting the average only covers the last few miles rather than for the day or trip. If it was not for this constant reset I would have given it a 5 star.