Just wanted to let you know that I received my button box today and it works like a charm! Thanks so much for working your magic! As soon as our budget clears for next year (probably over the summer), I'll be ordering one of your rotary controller input boxes. I'm very impressed with the quality of your equipment, and now I'm a big fan of your company's customer service practices, as well!

John E. Sparrow, Ph.D.
Psychology Program
University of New Hampshire at Manchester