American Marine PINPOINT High-Precision pH Calibration Fluids

These come in plastic envelope packets and are extremely accurate and field portable.

pH 4.000 +/- 0.002
pH 7.000 +/- 0.002
pH 10.000 +/- 0.002

Each packet contains ample fluid for calibration (about 30 ml). 

There is a free sample of these included with each PINPOINT® pH Monitor and PINPOINT® pH Controller. 

All electronic pH instruments should be calibrated monthly.




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