Extech PH110 Waterproof ExStik pH Meter

• Obtains continuous high accuracy using fresh reference solution
• Fast and easy steps to refill your electrode
• Eliminates the concern of electrode shelf life
• Refillable pH electrode that can be reused by refilling the reference solution once it depletes
• Order pH buffers separately

I bought this to use for cheese making, and it has fulfilled all my expectations, including the ability to check the pH of the cheese itself, rather than just the whey as most other meters are limited to.

I can only hope that it will prove as reliable in the long run as it has in the short run, providing reliable information to 2 decimal points, which comes in very handy.

I love it and would recommend it to anyone needing such accuracy and reliability.

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Good:

The PH110 is accurate and cheap. I am able to get repeatable flavor and texture when I make cheese, because I can hit all my markers.

Bad:

The PH110 requires fiddling every time I want to use it. It requires at least one calibration when I take it out of the cabinet. Then if I wait more than a couple of hours between uses, it requires another calibration. Calibration isn''t difficult, but it can get pricy because you have to buy pouches of calibration solution. I put the solution in a tupperware bowl and reuse it for a day or two.

Ugly:

A couple of times, I had to remove the batteries to reset it because it locked up during a calibration.