DapperDon
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This is going to be good.
The problem with pen meters is that once the probe goes out, you need a whole new unit vs just buying the replacement probe. Hanna is a benchmark in the scientific community and has a world wide reputation for quality and precision. I keep my probe in a special manifold that it shares with my Tri Meters so I can have all of the data at a glance. I take them out and clean them about every rez topoff or so to make sure everything is calibrated and maintained.Hey Don what about this Extech DO600 ? I've heard good things about it from people who work with water or a living.