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Title: HM digital TDS meter needs further evaluation
Review: Delivery was as stated, and decent price. However out of the package the TDS readings for tap and filtered H2O are way OFF! And I verified same H20 with another test kit. The latter was in accordance with City of Phoenix H2O dept. Now I'm not giving up totally on this instrument as bottled H2O came in as expected and in accordance with the other 'watersafe' city water kit?Not exactly sure why my Tap and filtered water read (almost the same) and above 600 every time?? Unless the accuracy of the device is just off with any H20 except bottled or distilled??Rick
