This water temperature gauge is engineered to determine small changes in the water temperature due to the greater sweep of the needle. This water temperature gauge provide a full 270-degree mechanical sweep which enhances visibility. The bright backlit display enhances night viewing and its aluminum construction reduces the weight. It has rear twist-on ring mount design which eases mounting and it measures temperature ranging from 130-280 degrees F and 60-140 degrees C. A 72-in capillary tube and 3/8-in national pipe taper fitting are also included.