Water PH Measurererer

Orin190

Well-Known Member
Are these cheap 10 dollar things reliable?
 

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There are better options - like this one from INKBIRD

A 4 in 1 meter

I bought 2 of them ( 1 as backup ) they work well.
They are literally on sale right now on amazon for $19 bucks ( amazon prime member price ).

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Kind of hard to miss this deal. :bigjoint:
 
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I buy bottles of this and save hundreds on meters and it's never out of calibration and doesn't run out of batteries. The only thing these aren't good for are slurry samples.
 
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I buy bottles of this and save hundreds on meters and it's never out of calibration and doesn't run out of batteries. The only thing these aren't good for are slurry samples.
what if the bromthymol blue solution is off?
 
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