Industrieller PH Analog Sensor 0-14PH Messgerät Modul 5V für Arduino Raspberry Pi #OMI
34,49 €
(3) insert the pH electrode into the standard solution with a pH value of 7.00, or directly short-circuit the two inputs of BNC interface, open the serial port monitor of Arduino IDE, and you can see the current printed pH value, and the error will not exceed 0.3.
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