Twin Pack Calibration Solution in single-use sachets *** FREE SHIPPING

pH_digital

pH Calibration Solution


We have found that the Hanna Checker 1 is pretty accurate right out of the box. For kombucha and other home testing a reading to the tenths is all that is needed. Often water from the tap reads around 7.0 plus or minus and we believe then no calibration is required (for our purposes). However, pH meters should be calibrated frequently every 1-4 weeks, or before each test depending upon the demand of the test. Two-point calibration (using both 4.0 & 7.0 buffers) ensures the most accurate calibration possible. Again we have found that just one solution is all that is needed. We recommend the 4.0 for kombucha and other low pH readings, and the 7.0 for testing one’s urine and other alkaline testing. The Solution once they have been used, is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use. Save the remaining solution in the package by folding over and sealing with a paper clip. The units may be stored in tap water do not use distilled water for storing the Hanna Checker 1. Suitable for all makes and models of pH pens and meters.

Price: $3.95
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