dissolved oxygen meter

[Ravnis]

http://www.eseasongear.com/milwaukeesm600.html

I've been looking at this meter and am skeptical as to whether it's a good meter considering how cheap it is compared to others I have looked at. Anyone have any experience with this meter?

[GaryD]

Hi Ravnis,

I have no experience of the DO meter, but I do have a Milwaukee pH meter that has never provided the same reading twice in a row. My impression is that a workable DO meter will cost a fair bit more.

If Crusty's around the place, he'll be in a position to advise you.

Given the importance of dissolved oxygen, I'll probably end buying a DO meter eventually, too.

Gary

[Crusty]

http://www.eseasongear.com/milwaukeesm600.html

I've been looking at this meter and am skeptical as to whether it's a good meter considering how cheap it is compared to others I have looked at. Anyone have any experience with this meter?
Hi

From a back yard point of view, it will do the job though you will need to calibrate them all the time. As it has no salinity or altitude correction, you will have to be sure to work those out manually to get some form of accuracy. I would think they will do the job from an "indication" point of view, though not to be relied on as accurate. Much the same as the color pH tests are indicative (no temperature compensation, the neutrality of pure water is 6.55@50C but 7.00@25C), these meters will be the same for dissolved O2, an indication only.

Any ability to read dissolved oxygen is a plus and those that have do2 meters will save more value ($) of fish, than the cost of the meter. The investment is sound.

[Shayne]

Hi Ravnis,

Was also looking at that meter, it costs about $500 through the Milwaukee dealer here but you can get it for $200 delivered from the US. ???? But yes was wondering about the quality compared to others. Was thinking of using DO test kit eg Sera in the meantime, i know its a whole step down in accuracy again and as crusty points out for the cheaper meters only an indication but think it may still be useful to know roughly where oxygen is running. Have you tried the test kits and are they any use?

Shayne

[Ravnis]

Haven't tried the test kits as the pond and aquarium stores don't carry the oxygen ones. I think a meter will last considerably longer in the long run. I also believe it would be more accurate in the long run. Most other DO meters I have looked at have been $700+ and currently out of my budget.