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HM Digital Waterproof pH Meter Model PH-200
[716165]
$65.35
by C. Maynard Date Added: Friday 07 December, 2012
I run a plant tissue culture lab. the other reviewer is correct, every pH meter or replacement electrode I have ever bought came dry. The reason is shelf life. My understanding is that they will sit on the shelf forever if they are dry, but once you add the buffer solution, the clock starts ticking.

I have no experience with this meter, so please disregard my rating. "The computer made me do it! It wouldn't post my comment without a rating.

Rating: 4 of 5 Stars! [4 of 5 Stars!]
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HM Digital Waterproof pH Meter Model PH-200
I run a plant tissue culture lab. the other reviewer is corr ..
4 of 5 Stars!

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