You can get one for between 2 and 3 hundred dollars but I question if they can do the job of the more commonly used meters in the 6 to 7 hundred dollar range.
Are you sure you really need one? Even in my operation where I hatch, grow out, bring inside for the winter, and haul fish, I rarely use mine. I use it much more to check temperatures.
In a typical recreational pond low D.O. is rarely a problem and even if it was there's not much you can do about. If you do anticipate oxygen problems you're better off investing in an emergency aerator for the same amount of money.
Last edited by Cecil Baird1; 03/29/11 04:21 PM.
