Troubleshooting pH sensor

Account cancelled 2017-10-18 19:06:24 1208 Views1 Replies
i get strange ph readings (voltage around 3-4v ph=12-13). Is there any ideas what wrong with mine? Thanks :'(

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2017-10-19 15:36:02 Is the reading the first time you use the pH meter? How is your calibration? Is that normal? robert.chen