I hope it works for you. I think the LM-1 protocol is pretty much the same. It data logs more than just Oxygen right? I have attached the PDF of the serial protocol that I used to right the code. I'm not sure how much I assumed about the data since I had an LC-1. I think I was trying to right it to be a little flexible but it was just a first stab at the code.
Let me know if I can help.

-Jeremy