Bluelab pH 4.0 Calibration Solution - 500 ml
If your goal is to improve your Bluelab pH products' longevity and accuracy, you can’t cut corners when it comes to frequent calibration and cleaning. Fortunately, the straightforward calibration process is standard for all Bluelab pH pens and meters.
Once you clean your pH probe, the next course of action is to calibrate it using the Bluelab pH 4.0 Calibration Solution. After this process, you can immediately resume measuring the Ph. Each time you clean your pH probe, remember to recalibrate it and upon your meter, alerting you that a calibration is required. SKU: PH4500