monotreme_man
New member
i see recommendations to use a pH pen,
such as an HM PH-200 or Hanna 98127.
i'd like any comments pro or con specific models.
i'd prefer to stay under $100, such as
http://www.amazon.com/o/ASIN/B000WJ2YOE/181-3802526-0315960
(what comments i've been able to find seem
dated or virulent.)
such as an HM PH-200 or Hanna 98127.
i'd like any comments pro or con specific models.
i'd prefer to stay under $100, such as
http://www.amazon.com/o/ASIN/B000WJ2YOE/181-3802526-0315960
(what comments i've been able to find seem
dated or virulent.)
