Bluelab 4.0 pH Calibration Solution 250ml (Pack of 2) Size:250 ml or slow stunted growth

or slow stunted growth

robust defences

9mm pipe – Outside Diameter 9mm/Inside Diameter 7mm

5L pots (optional upgrade to 15L pots)

Equipped for every eventuality

Bluelab 4.0 pH Calibration Solution 250ml (Pack of 2) Size:250 ml or slow stunted growthIf you want to improve your Bluelab pH products accuracy and longevity, youll need to get into the habit of regular cleaning and calibration. Luckily, the easy to follow calibration process is the same for all Bluelab pH meters and pens. After cleaning your pH probe, youll need to calibrate it with pH calibration solutions at two reference standards 4. 0 and 7. 0 pH. Once calibrated, you can start measuring pH again immediately. Pack Includes 2