Cleaning the pH probe is one of the most important parts in the care and maintenance of any Bluelab meter, monitor or controller. If the probe is contaminated or dirty, the range readings will be affected with negative consequences. The instrument is as accurate as it is clean.
If the electrode or probe is dirty or contaminated, the reading shown may be inaccurate or erroneous. Cleaning the probes is a very easy task that will prolong the life of your probe.
20ml pH 4.0 calibration solution