Range: 0 - 1990 (ppm) mg/L

Calibration: Manual zero-point

Hanna's line of calibration solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet

Immerse again in the HI50021 check solution and press the CHECK key

Recommended Calibration Frequency

Santevia Glass Water System | Mineralizing Countertop Filter – Removes Fluoride, Chlorine & Lead pH2O bottle Range: 0 - 1990 (ppm)Water That Looks Beautiful. Works Even Better. Most water filters strip everything out including the minerals your body actually needs. The Santevia Glass Water System does something different: it removes 90+ contaminants including fluoride, chlorine, and lead, then restores calcium, magnesium, and potassium the essential minerals your cells, tissues, and organs run on. The result is water that tastes smooth and refreshing, delivered through a hand