Bluelab® pH 7.0 Calibration Solution 250ml plant life 6 ft temperature probe is

6 ft temperature probe is accurate to within 2°F

Bat Guano is fast acting and highly effective when mixed into potting media

tear and puncture resistant

The perfect companion for indoor and outdoor plants

2 each of: pH 7

Bluelab® pH 7.0 Calibration Solution 250ml plant life 6 ft temperature probe isCalibration and conductivity standard solutions a must in every growers toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity Temperature probe. Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and