Thanks for response. At least now I got something (as I said, I had no idea what do manufacturers offer).
About accuracy - no freakin' idea Let's say - 0,5 mg/l - is that a great accuracy of not? Nobody's here a scientist and high accuracy is not necessary. If dissolved oxygen is ~4 mg/l then that +/- 0,5 doesn't matter a lot - no trout will live there.
Let's say - 0,5 mg/l - is that a great accuracy of not? Nobody's here a scientist and high accuracy is not necessary. If dissolved oxygen is ~4 mg/l then that +/- 0,5 doesn't matter a lot - no trout will live there.
