You can't accurately compute actual dissolved oxygen with the above meter shown by CB1 on amazon. All it does is adjust for temperature difference assuming DO saturated water. I have one of those things. Good thing about it is it has a long probe. It does not really measure the DO. Plus you should calibrate it with something that accurately measures the temperature because the one I have is not accurate at various temps.
JKB why isn't that probe water tight? To enhance the water proof nature one could encase it in silicone caulk.
Last edited by Bill Cody; 04/14/16 02:27 PM.
