This thing is great
With associated adapter it is a quick and easy way to check light levels for most connectors and also record them any documentation that you may have. The unit also functions as a stand alone and is small enough to handle if you are up a ladder or are in a position that you do not have a surface to set larger test gear on. Plus it has a real time graph function that allows you to see any intermittent issues that maybe occurring. Only drawback, would be nice if they would create a version of this software for a windows laptop if they do I have not found it yet......