(1)This 6-in-1 WIFI PH/EC/TDS/SALT/S. 5)Wide range of applications can be used for including drinking water, swimming pool, pond, aquariums, hydroponics, laboratory, food processing, etc. 2) YY-W9909 has now been upgraded to support Chinese, traditional Chinese, English, French, German, Russian, Japanese, Korean, Spanish; the languages of these countries.
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