Perfect ........ that little dude is going on the dash of the old fishing truck. I can't believe that it caclulates the DO based on density altitude. Micro chips have come a long way since my days in the ole' chemistry lab. 8o $50 is a much better deal than I would have imagined you could ever have obtained a streamside water quality anylisis.

Thanks guys, you get a major kudo's for that one in my book.......:smokin

John