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by bkraz 1523 days ago
I agree! I've had the best luck with this one, which is far better than the average pH pen from Amazon. https://www.amazon.com/Waterproof-Accuracy-Suitable-Testing-...
1 comments
ireflect 1523 days ago
What do you think of the Atlas Scientific pH probes?
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bkraz 1522 days ago
Haven't used them. Looks good. Costs a lot more than the Amazon one, so could be different class with different expectations.
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