The hard drive in my memory is pretty full so I decided to try and find a way to put the directions in regard to using the Control unit for the ST-1 unit on to my iPhone. I downloaded the Stromer Manual, then exported it as a PDF file to my computer. Using Command-Shift-3 on my Mac, I was able to then drag the cursor over the material I wanted to capture. Upon releasing the trackpad, a PNG photo was sent to the Desktop. I then used a photo transfer application to transfer the pics to my iPone and created an album to place the pics in. As you can with any pic on the iPhone, you can enlarge it hence making the info readable when out on the road...seemed better than carrying a paper copy along on my rides/continually having to pick up the manual and review the procedures for making changes on the control unit.