American Marine PINPOINT pH Calibration Solution 4.0
The PINPOINT pH Calibration Solution 4.0 comes in plastic envelope packets and are extremely accurate and field portable.
This is a calibrated solution which is compatible with all American Marine Electronic pH Monitors and Controllers.
Each packet contains ample fluid for calibration (about 30 ml) so you won’t have to worry about having enough.
They are intended for one time use only and are accurate to /- .002 so you have peace of mind!
Each PINPOINT pH Monitor and PINPOINT pH Controller contains a free sample of this product.
Electronic pH instruments need monthly calibration so they stay effective.