$332.00
In stock
HI977794-11 Pool Line pH CAL CheckTM Standards provides a simple way for calibrating and validating the HI971044 Pool Line portable photometer. This high-quality set of standards is manufactured in Hanna Instrument’s state-of-the-art facility and comes supplied with a certificate of analysis. The certificate of analysis provides the lot number, reference values, and expiration date for traceability.





To empower customers to achieve quality
by supplying intuitive, accurate, and reliable analytical instruments with exceptional customer service and value.
We take pride in every product we build. From an original idea, to a completed product ready for testing. We oversee every aspect of the manufacturing process. It is this level of attention to detail that sets us apart.