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History reporting to assist data-driven decision making
This 3-in-1 Pen measures pH
The chemical concentrations stated above are a guide
Instant alarm alerts to your phone
double-junction pH probe and titanium conductivity (EC) electrodes
Bluelab pH 4.0 Calibration Solution - 500 ml Box of 6 US halloween25 History reporting to assist data-drivenpH 4. 0 calibration solutions a must in every grower's toolbox Features: Contains 6 bottles 500 ml 16. 9 fl oz Boost your pH products longevity with regular cleaning and calibration
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