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Comes with clear and precise instructions and works as advertised.
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Second one works as advertised
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Works as advertised, a good dependable ph meter.
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Works as advertised.
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Works as advertised
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It works as advertised!!
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Follow the directions and tester works as advertised
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As advertised and directions were pretty good except there was minimal information on how to use the potassium chloride storage
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Works as it should.
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so I can do a 3 point calibration as well as it came with the container to store the calibration fluid in during testing.
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I'm not sure what caused the glass to break as it did not make direct contact with any solid object which justifies my 2 star review.
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n’t believe how fast it lost sensitivity
