Buffer Powders for pH Pen (4.00 / 6.86 / 9.18)
Buffer Powders for pH Pen (4.00 / 6.86 / 9.18)
$4.50
In Stock
In Stock
In order to keep your pH meter as accurate as possible, you will need to calibrate using three of our pH buffer solutions.
This buffer powder pack is used for calibrating KL04169 – Pen Style pH Meter
