Intro: Digital Tachometer Modification
Adding a *constant on* feature.
I have wanted one of these for some time now but I need one that will stay on without holding down a button. The ability to set the tool, leave it and say start or rev something then come back to it and know the max/min speeds is very useful for someone who works alone. This was EASY, anyone can do it and in my opinion it makes for a much more useful tool.