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HM Digital Waterproof pH Meter Model PH-200
[716165]
$65.95
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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Measure Master 5ml Graduated Dropper
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HM Digital
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HM Digital Waterproof pH Meter Model PH-200
Its a great meter Ive had mine for about 3 years and the onl ..
5 of 5 Stars!
BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate

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