I've been patiently waiting for an expert to discuss this device as well. If you read the reviews of it they are not very positive.
I would like to see a shoot-out test of this device against a professional quality O2 meter.
I wish someone would invent a reasonably priced do all water quality testing device. Theo stop messing with rockets and such and get busy designing something, give the plans to Dwight - he can build anything, then have TomG fine tune it. Get busy people, you've got work to do. Don't make me walk around with my management clipboard.
