This is surely from a utility or other application that you have installed, and if you go through your Applications and Utilities folders, you should be able to identify what it is. It is not a standard Apple application and must have been something that you installed yourself at some point in time, or it was installed along with some other application or utility that you installed. Is there anything in your System Preferences that identifies it?
When you click on it, or hover over it, you do not get any information or drop down menu? It looks like it is inactive, but you didn't say.