I would recommend the Hanna pHep4, it has worked great for me. Click here to check it out.
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I bought from this outfit and they included free calibration buffers. They are also a real brick and mortar store and therefore provide good customer service.
MVP Reviewed by MVP on . What about this pH pen/meter ? Here is one pH pen I would like to buy to be ready for this summer to grow in soil (will be my first grow). Can you please tell me if this is any good for me or if I have to look for something else ? Here is the link: Pen Style PH Meter for Swimming Pools Spas Tester New Thank you ! Rating: 5