- Reference articles
- pH (Potential Hydrogen)
-
Ask Bluebot
-
Bluelab Growbook
-
Product guides / Get started
- OnePen
- pH Pen
- Soil pH Pen
- Conductivity Pen
- Growers Toolbox
- Truncheon Nutrient Meter
- Combo Meter
- Combo Meter Plus
- Multimedia pH Meter
- ORP/pH Meter
- Pulse Meter and App
- Guardian
- Pro Controller
- PeriPod
- Sample Tube and Fitting
- pH Controller
- Connect Stick 2
- pH Probe
- Leap pH Probe
- Replacement probes
- Care kit
-
Reference articles
-
Software guides
-
Care, cleaning and maintenance
-
Returns and RMAs
-
How-To Guides
-
IntelliGrow
-
IntelliClimate
-
IntelliDose
-
IntelliLink
-
Downloads
Why do we need to calibrate a pH probe?
All pH electrodes cannot be produced with identical characteristics. This difference between the theoretical and actual behaviour of a pH probe must be compensated for. A calibration is required to match the pH meter to the current characteristics of the pH probe. These characteristics constantly change throughout a pH probe's life, so, Bluelab recommends calibrating every 30 days. However, the more a pH probe ages, the more frequent a calibration will be required.