General Hydroponics Standard Reference Solution pH 4.01 8 Ounce

A pH measurement meter is only as good as the most recent calibration. General Hydroponics Standard Reference Solution are pH meter calibration solutions that are available in pH 4.01 (pink) and 7.01 (green) and assure the accuracy of your pH pen or meter.
$7.54

Details

A meter is only as good as the calibration. General Hydroponics Standard Reference Solution is available in pH 4.01 (pink) and 7.01 (green). Solution should not be reused. Pour a small quantity from bottle, calibrate meter, and dispose of used solution. Pens should be calibrated about once a week. The storage solution helps prolong the life of the electrode.

Additional Information

SKU TSPH48
Manufacturer General Hydroponics