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3 in 1 pH/TDS/TEMP Meter PH-2826 pH Controller con Elettrodo BNC Sonda Tipo di Acqua di Qualità tester per Acquario 30% di sconto - AliExpress Attrezzi
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Milwaukee Instruments MC122US pH Controller with Hi/Low Range Alarm, 2 Point Manual Calibration, 0.0 to 14.0 pH Range: Amazon.com: Industrial & Scientific
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