I just bought a nice used dissolved oxygen meter and thought some others might be interested in getting one as well. I bought it from Randy Rushin of Water Monitoring Solutions 903-439-4741, [email protected], web page

He sells or rents any kind of meter you could want, but right now he has one YSI-55 (digital) and four analog dissolved oxygen meters in used but good condition and for good prices.

I told him he ought to become a sponsor so I wouldn't have to resort to spam to get this info out there. ;\) If you're in the market for a DO meter or just want to find out more, give him a call. He's good people and won't try to hardsell you. I bought my meter for considerably less than the cost of a new one.

Hope this post is o.k., Bob. My quick check of the sponsors didn't reveal any that sold DO meters, so I thought this info would be helpful.