Bluelab pH 7.0 Calibration Solution 250ml (Pack of 2) Pens NFT channels are easy-to-use and

NFT channels are easy-to-use and easy-to-clean and have a well-proven track record for commercial applications

lid & 9mm top hat grommet

1115mm(Length) x 410mm(Width) x 95mm(Depth)

By helping your plants feed faster

Bluelab pH 7.0 Calibration Solution 250ml (Pack of 2) Pens NFT channels are easy-to-use andIf 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