Range 0 - 30"hg Supplied with a high accuracy vacuum sensor.
Designed to monitor the condition of your fuel filters and to advise you as to when to change them. There is a programmable :"Change Filter Light" so you can set the point you want to change the filter from 0 - 30"hg. After changing the filter the gauge will reset itself. Mounts in a standard 2 1/16" hole.