Hanna HI70007G pH 7.01 Calibration Buffer - GroLine Sachets (25 x 20mL) digital refractometer By simply immersing the electrode

By simply immersing the electrode in the HI70061G cleaning solution for 15 to 20 minutes will dissolve any mineral deposits or other coatings

The titrant solution is pre-standardized

The Alexapure Pro Filter removes 200+ contaminants from water

3 years (10 measurements/day) Environment 0 to 50 °C (32

Hanna HI70007G pH 7.01 Calibration Buffer - GroLine Sachets (25 x 20mL) digital refractometer By simply immersing the electrodeHanna HI70007G pH 7. 01 Calibration Buffer Professional GroLine Sachets The Hanna HI70007G pH 7. 01 Calibration Buffer is a high precision, NIST traceable calibration standard designed specifically for hydroponics, aquaponics, greenhouses, and water quality testing applications. Each box contains 25 individually sealed 20mL sachets that deliver fresh, uncontaminated pH 7. 01 buffer solution every time, ensuring optimal meter accuracy and reliable